Saturday, 14 April 2018

Learn Physics Free best concept

Education for all Physics and Telecommunication technology Free best concept

The Education Big Message of this Website must read !!!

The Education system is not good, The concept of education is not good, The education importance is not good.You will ask why? Then I will ask a question. How many Peoples get up in the morning as a intention that today I will learn something new. Can you answer the question? Well I can answer as per survey record only 6% people have intention every day to learn something new. Now important point, why such a less percentage of people? The answer is most of the people have no purpose of life and education importance.
All behind this is true meaning of education system is not good, Lets to elaborate this, The teaching style of teachers are not good and that is reason students are not participate in the class actively. Students are not getting interest in whatever they are learning.

Concept of Education

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Education Importance
Teachers inter in the class room and just write down the menu of syllabus, you have to study in this subject xyz  and will be cover one by one without giving any practical application and uses of any topic of the syllabus menu. Incompetent faculty in colleges, Actually colleges are now became business for more profit they hire low salary base faculty, This is education system . This is true meaning of education, This is the concept of education . Believe me that is the main reason students don’t participate in the class actively. Because they don't know the importance of education they are studying.

Well Student level of preparation and level of aspiration ground and sky gap. Today education is for degree not for knowledge .Well filled mind not well formed mind and this well filled mind will give you nothing.Incompetent faculty teaching with conversational theoretical classroom based approach. 
Students don’t know why they are studying this topic and what they are studying in this topic, What is the practical uses of that topic in life. You can ask this question but most of the student don’t know what they are studying and why they are studying.
Where they can use this knowledge in their daily life .This is main reason of confusion in study and life.  
Their goal is not clear, what to do and what they can do better.
Instead of giving the education syllabus menu, Teachers should emphasizes the practical uses and applications of the topic before teaching that topic. So that teachers can attract the attention of Students in the class room .
Due to this type of education system students are just memorizing the things or topic not understanding the things or topic fully. So Confusion continue in study and life.
To make education learning practical, application and its uses in life it will require more effort from each of us to change the present education system.
So I am doing my effort in the field of Physics and Telecommunication technology please come and join this effort to make it successful .So that when everybody get up in the morning as an intention to learn something new and that percentage will increase from 6%  then successful person percentage will increase in the world.
I don’t know what do you mean by success ? but my opinion Success is freedom, your own choice of your life. Do what love to do, it will give you success in your life.   
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Share Knowledge of science Physics and technology Telecommunication to Society those who want to learn concept of Physics and Telecommunication in easiest way free of cost you will never forget as simple and practical .If you hate Physics and technology there may be some reason to hate and it is as simple you have not studies the way your brain want to accept.you have learnt from wrong teacher. after a long experience here i will teach you the way you never study before and never thought Physics is as simple.it will be Physics magic, each and every topic will be covered with key concept in depth analysis based upon the facts and experience close visualization

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Study of Nature 

Sunday, 8 April 2018

Understand our physical world

Understand our physical world 

This is first chapter of XI class Physic Physical world this chapter is starting of Physics so it is very important to understand first chapter because "well began is half Done". This is small topic but important from concept point of view and basic understanding pillar of Physics so lets start what is in this chapter.

Physical World meaning world of Physics ( Physics Ki Duniya )   
Very First Welcome you Physics World

Understand our physical world,Physical world,physical universe,physics universe
Understand our physical world 

Saturday, 7 April 2018

How to study physics right direction

How to study physics right direction 

We will see here the right method of physics study so that it will be easy for our study physics very interesting
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How to Study physics


Wednesday, 4 April 2018

Know Important concept for Force

Know Important concept for Force

What we study maximum in Physics ?

Know Important concept for Force,what is force,force definition,force concepts
Know Important concept for Force 

Sunday, 1 April 2018

conservation of momentum

conservation of momentum

Conservation of momentum is very important topic of Physics because conservation of momentum concept state second law of Newton.We will see how Newton's law was derived from conservation of momentum.In our previous post we have already studies about conservation of momentum formula and its basic concept, You can refer the previous post for basic concept and definition of conservation of momentum concept for conservation of momentum. In this topic we will cover the application of conservation of momentum as well as its numerical problems.So lets start.

Conservation of momentum for a system

Linear conservation of momentum, we know that any rigid bodies system is made by collection of many small particles, Take an example of rotating wheel of a car, Another example rotating ceiling fan.

When we observe this rotating bodies, Then we found that there are many small particle, Which are rotating with different speed in different radius.
If anybody ask find the speed of the rotating wheel,Then what will be your answer, Which small particle speed you will answer this is really difficult, So to make this simple, we answer the speed of center of mass of the rigid body.
Because whole mass of the rigid body is concentrated at the centre of mass. we have already learn in previous post . So whole body is consider as a system and its internal small particle conservation of momentum gives the whole body conservation of momentum.
We will see how these two conservation of momentum is same, just wait see the below picture.
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Conservation of momentum

In Centre of mass post we have studies that how to find the centre of mass for small point mass, So i am just using that concept.
We know that centre of mass general formula is given as rcom (centre of mass) .

rcom  = (m₁r₁+m₂r₂+m₃r₃+......................+mₙrₙ)/(m₁+m₂+m₃+................+mₙ)
Now  differentiate this equation with respect to time on both side then we will get 
d(rcom)/dt  = (m₁dr₁/dt+m₂dr₂/dt+m₃dr₃/dt+..............+mₙdrₙ/dt)/(m₁+m₂+m₃+..........+mₙ)
we know  dr/dt  = velocity = v so we can write the above equation as 
Vcom  = (m₁v₁+m₂v₂+m₃v₃+..............+mₙvₙ)/(m₁+m₂+m₃+..........+mₙ)
 Now arranging the equation we can write like this.
(m₁+m₂+m₃+..........+mₙ)Vcom  = m₁v₁+m₂v₂+m₃v₃+..............+mₙvₙ

 (m₁+m₂+m₃+..........+mₙ) = total mass of rigid body =M as shown in above picture  so we can write as 
MVcom  =  m₁v₁+m₂v₂+m₃v₃+..............+mₙvₙ now as shown in above motion picture momentum of different small particles m₁v₁, m₂v₂, m₃v₃  hence If we want to write momentum of the system can write  Psystem  = MVcom . p = mv

Whenever we want to write momentum of a rigid body then we take whole mass of the body and velocity of centre of mass product as state above.Hence now we can write 
→               →  →  →                            →
Psystem  = p₁+p₂+p₃+........................+pₙ

Hence total momentum of a body is equal to vector sum of momentum of individual particles.

Saturday, 31 March 2018

subnet mask

Subnet Mask

Today our topic is about subnet mask, This topic is important and interesting, most of the people confused in subnet mass, Because their concepts is not clear and always in doubt,  How much you know about subnet mask i don't know, But i ensure you after complete reading of this post your concept and all doubt will be clear forever in easy way. In previous post we have discussed in details about IP concepts, In subnet mask that concept will be use so i will suggest you to refer first IP concepts post after that you can well understand subnet mask. So lets start this topic.

What is Subnet mask ?

Subnet mask introduce from subnetting, Hence to understand subnet mask we have to understand subnetting.Now we will see what is subnetting ? why subnetting is required, If you can recall our IP post reference we have already discussed there are two version of IP one is IPv4 and other is IPv6. We generally use IPv4 and our discussion is also about IPv4 in this version we have limited IP. Now you can think all over the world people required unique IP to connect through internet, But we have limited IP so it is major problem in front of the technology, How to overcome of this problem introduce concept and reason of subnetting. So we can say to overcome the problem of limited IP, We required subnetting.

subnet mask explained

Subnetting is a technique to use IP addresses efficiently or preserved IP addresses with minimum wastage of IP addresses. To do this we have only three methods.

1 Use private IP, We know private IP for class A for class B 172.16.x.x and for class C 

2 Use IPv6 where unlimited IP are available no shortage for whole globe 128 bits, remember in IPv4 only 32 bits available.

3 Use Subnetting.

Hence here we will use subnetting concept to find subnet mask, The meaning of subnetting is "network within a network" or logically division of IP addresses,To understand why subnetting is required take an example to well explain the concept of subnetting see below picture.

How to find subnet mask ?

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Subnet Mask

ip address-public ip address range

IP Address-Public IP Address Range

Today our topic is about IP address very important and interesting because your device laptop,computer, mobile and other devices use IP address to connect with internet globally every device use unique IP address for identification to connect globally.

What is IP address ?  

It is an internet protocol address (IP address) is a numerical level like assign to each device connected to a computer network that uses the internet protocol for communication.
IP address allow a device to communicate with other devices over an IP based network like the internet
An IP address has many parts just like an address location of your house globally suppose your house location address is written as 316 Janpath road New Delhi India then here
316  - house number
Janpath road  - Street
New Delhi  - City
India  - Country

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IP Address Public IP Address Range

motion of centre of mass

Motion of centre of mass

Today our topic is all about motion of centre of mass very very important topic most of the students confused in motion of centre of mass due to lack of key concept of motion of centre of mass, So your all doubt and confusion will be clear here. You will get best concept for motion of centre of mass in this topic.
In previous post we have already studies about basic concept of center of mass, calculation of centre of mass, importance and application of centre of mass.

You can refer the previous post Centre of mass Physics . Now in this topic we will learn what Physics says about motion of centre of mass like velocity, acceleration.
When two bodies moving separately then what effect on motion of centre of mass so lets start.
motion of centre of mass,centre of mass
Motion of Centre of mass

center of mass physics

Center of mass Physics

Today our topic is center of mass Physics. This topic is very important to understand better Physics. Without understanding concept of center of mass Physics, It will not be easy for you to understand better Physics, So try to understand center of mass physics.
In previous post we have already study center of mass basic concept for continuous mass distributed body. You can refer previous post Center of mass formula .But here we will study center of mass for hollow and solid hemisphere with easy concept.   

What is center of mass Physics ?

Center of mass of  a body is that point where whole mass of the body is concentrated it can lie within the body or outside the body depends upon the shape of the body.

Why need to study center of mass Physics ? 

In Practical every rigid body has some shape and size . If the body comes in motion then every point on rigid body have different velocity and acceleration. 
Suppose a rigid body of some mass m is rotating about its axis as well as translate. Every point on rigid body will have different velocity and acceleration.
It is really difficult to calculate velocity and acceleration of all point on rigid body.
Hence there is a single point where whole mass is concentrated is called center of mass and that point velocity and acceleration is consider as whole body velocity and acceleration.
Hence that special point is called center of mass.
We know that Newton's second law . Fnet = ma, p = mv. Here in this case "a" and "v"  is acceleration of center of mass  and "v" velocity of center of mass. If any body do combined motion rotational and translational then its path analysis will be easy, When we sit on center of mass and analyse body other particle motion.
Generally center of mass path is easy like (straight line, Circle, Projectile)       
Hence you can think the importance of center of mass.
Fnet  = ma equation has two important condition
Here "a" is acceleration of center of mass and m is a point mass.This is reason we need to study center of mass physics.

Practical uses and Application of center of mass Physics 

The center of mass plays an important role in astronomy. The barycenter is the point between two objects where they balanced each other. 
It is the center of mass where two or more celestial bodies orbit each other. When a moon orbits a planet or a planet orbits a star, both bodies are actually orbiting around a point that lies away from the center of the large bodies.
For example the moon does not orbit the exact center of the earth but a point on a line between the center of the earth and the moon, approximately 1710 km below the surface of the earth. Where their respective masses are balanced. This is the point about which the earth and moon orbits.
Automotive applications  engineers try to design sport car so that its center of mass is lowered to make the car handle easy.
Also uses in aeronautic, high jumping .
Now i think you have understand the importance of center of mass.

How to find hollow hemispherical center of mass ? 


center of mass physics,center of mass hollow hemisphere
Center of mass hollow hemisphere

Different Forces in the world

Different Forces in the world

How many types of Forces in the World ? 

Lets start with good morning Very first we will see what is force ?
Force is a notion experience or feel of push or Pull.We found force in the world every place most important point about force see force always come in picture between two bodies one body apply force and other body receive force without two body force can't come in picture.Here some example of forces is given below in picture see in every forces there is two body. 
Different Forces in the world,force types,different forces,all forces definition
Different Forces in the world

Antenna communication system

Antenna communication system 

Today our topic is antenna communication system and it is very important part of communication system so to understand telecommunication technology we must know antenna and its working principle so that we can better understand about telecommunication technology in previous post we have already studies basic communication system you can refer previous post 
basic communication system here in this topic we will discuss how does an antenna work.

working principle of antenna                                        

Antenna communication system,
Antenna Communication system


what is subnetting

What is Subnetting ?

Today our topic is very important, What is subnetting ? .You will easily understand subnetting in this topic.In previous post we have learn basic concept of subnetting.You can refer that basic concepts  so that you will understand why subnetting is necessary in network. I will suggest you to go through basic concept of subnetting

Subnetting means ?

Subnetting is a technique to partition a single physical network into more than one smaller logical sub-networks. An IP address include two parts one is network part and other is host part.
Each IP address consist of the subnet mask. All the class types such as Class A, Class B, Class C include the subnet mask know as default subnet mask.

How to do subnetting ? 

Suppose you want to setup five different network, Then you have two choices first buy five different network ID, But this network ID will be very costly so will not prefer to buy five different network. Second buy a single network ID and divide this single network ID into five different sub-network ID, Which is called subnetting. Hence we will prefer subnetting as shown in below picture.
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What is Subnetting ?


center of mass formula

Center of mass Formula

Today our topic is for center of mass formula for continuous distribution of mass of the body. This topic is conceptual but important for whole topic in physics. So we will learn from basic concept to depth .Once you will learn the basic concept, Physics will be easy for you in every topic and your concept will developed the way to think about problems. In previous post we have study about basic concept of center of mass, When body is discrete, Means two or more body masses are separate. You can refer post center of mass But in this topic we will study center of mass formula, When body mass is distributed continuously, Hence the previous post formula will not be applicable, So have to drive new center of mass formula, So lets start and enjoy learning center of mass formula.

integration meaning 

As we have discussed here body mass will be continuous distribution over a shape and length, not in discrete manner. So we required here concept of Integration meaning.
So that you can well understand without any doubt.
Hence first see the Integration meaning, Then will continue for center of mass formula derivation.


conservation of momentum formula

conservation of momentum formula

Today our topic is conservation of momentum very important topic. We will discuss this topic from basic concept to depth concept of conservation of momentum.First we will discuss what is momentum and then how momentum of a system is conserved by taking practical example.
In previous topic we have already learn about centre of mass of a system, So that concept of centre of mass also be use in the conservation of momentum.
So i will suggest you to go through topic of centre of mass for easy understand, You can refer previous post Centre of mass important point  to understand concept of centre of mass. Now lets start conservation of momentum.  

What is momentum ?  

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                                                     Conservation of momentum        

what is web hosting

what is web hosting ?

Web hosting is today topic for us. This is important topic because we all are using internet so we should know that actually meaning of web hosting. we know that this is modern era of technology. Digital media is booming, its perception is in year about 2020 it will be one of the largest sector of employment. So you must know about internet parameter like web hosting, domain name, How web hosting is done.If you are interested  how to earn money online then you should know about web hosting.

First understand domain name before hosting

Domain name is also called DNS (Domain name system or domain name service or domain name server).Don't worry i am starting from basic so that you can understand well about domain name .If you use internet then you must know DNS. it can be hack by spoofing.
Now your computer and internet are automatically connected together means a full network is there. Like you are reading this post through internet so you are connected through DNS server through ISP (Internet service provider like Jio, Airtel) through internet then you are able to read this post online.
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Web Hosting

See the above picture. Every computer connected with internet in the world makes a network. Now this computer network which help to connect one computer to other computer or one mobile to other mobile connect through IP address.
I have already discussed in our previous post about IP address in details. You can refer 

IP address is just like your mobile number but it is four octet bit number logical address like which is assign to your computer so that whenever your computer will connect through internet then this logical IP address is used for communication through this IP address.

Now Important point for domain name when you type google.com, facebook.com, physicseasytips.com on your computer to open the browser, Then your computer does not know IP address of google.com now DNS server has IP of google.com and DNS server connect your computer to google.com. Hence without IP address you can not connect to any website or can not open any website.
So our human ability is that we don't remember number but we easily remember name like we save any number in our mobile with name to call any person easily. With this thought domain server was made like google, facebook,youtube,physicseasytips  and this is called domain name.
I hope you have now understand domain name.

So when you open google.com then request goes to DNS server and provide IP address of google.com to your computer and your computer connect to google.com.
Hence every ISP company like Airtel, Jio has its own DNS server, Which provide IP address to your computer to connect with different website.

There is one problem everyday many new website hosting is done and many old website hosting are expired so DNS server need to update every time.
So whenever Airtel,BSNL server is down then when you try to open google.com then not connect.
Public DNS is also there google provide to ISP so that all ISP can configure in there DNS to obtain IP Address of any website which can connect easily in case of ISP server down.Now we will discuss Web hosting.

Web hosting 

You have chooses domain name and registration of domain name is done like physicseasytips.com, But whatever i will do on this website article posting, image loading anything update, Where i will store this data of course required a server, We can't made web hosting server in our home because it required 24x7 internet connection, electric power availability or high internet speed required.

So that anybody comes to our website from any part of the world, then our hosting server can process fast to provide data to the user. So we can't make hosting server at home as the requirement mentioned 
Now for this other companies are running their data center and has made their hosting server with all required facilities so we just pay some amount of money and they provide their server to us for the use of our website file data and remotely we can store our website data to that company hosting server.

Hence just like DNS server hosting server is there to store our website data and we can upload data to hosting server.If anyone open your website he can access your website file through hosting server.

Now you know that there are many language like html,css, php,Linux, windows in which website files are stored.
Hence there are mainly two type of hosting server one is windows hosting server and other is linux hosting server. Windows hosting server is costly because in windows hosting server need licence, But in linux hosting server it is open source

so it does't required licence so linux hosting server is cheap.Server hosting also depends upon traffic if your website has no more traffic then you no need to buy big server hosting. There is server level hosting see below.

Hosting Server types 

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There are three types of hosting server
1 Shared hosting
2 Virtual private servers (VPS) hosting
3 Dedicated Servers hosting 

Server is just like our computer but we do some special configuration in this computer, So there are many companies working on data center and provide hosting server service up to 99% up time.Now suppose any company made a big hosting server 16GB ram and I3 processor and full hosting server is provided to you then its hosting server cost will increase and this type of hosting server is called dedicated server hosting.

Now suppose in one hosting server above mentioned if divided into three virtual hosting machine and provided to three users separate to three different hosting user this is called virtual private servers (VPS) hosting.

Now Suppose in one VPS hosting server we made many small hosting such that many hosting user can shared this VPS hosting this is called shared hosting.

Now if your website is new and traffic is low 100 to 1000 users then you can use Shared hosting, If your website is taking traffic more than 1000 users at a time then you should chose VPS hosting.But your website large traffic like eCommerce website flipcart, Amazone then you should go for dedicated web hosting.Hosting totally depend upon the traffic of website i hope you have understand hosting.

Now suppose if you are using shared hosting and hosting company has given ten user hosting within one VPS, Now if one hosting is take more traffic then other 9 hosting user website will effect CPU will give all the time slot to more traffic taking time and other hosting user site will down. So this is disadvantage of shared hosting.
But hosting company manage this by monitoring the all site traffic so that other hosting site can not be down long time. Now this is all about web hosting.

Which companies are providing web hosting

There are many companies which are providing web hosting some important companies name for web hosting from where you can buy web hosting for your website, If you will do Google for web hosting you can see below picture.
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Apart from this many many other companies are also there which are providing web hosting. Godaddy and BigRock are Indian companies.
Above any companies you can buy web hosting for your website all are providing well services to his customer.

Free Web hosting 

There are also many companies which are providing free web hosting, If you will do Google then many companies are providing web hosting only for limited period generally one year free web hosting. If you are using free web hosting and your website are taking more traffic then free hosting site will down.
So i will suggest you never go for free web hosting. If by any means all free web hosting site are closed then your website all data file will lost. So if you are planing for long time internet business then you should buy web hosting. But if you want to just test and learn website design then your can chose free web hosting.

Web hosting plan

Any above company you can see the hosting plan just signup with your email address and go the the hosting plan. Here you will find one year hosting plan, two year, five year hosting plan.Which types of facilities hosting company are providing, you can see all details about hosting plan just see below picture about hosting plan.

what is web hosting,hosting,website hosting,

 Hosting and domain relation  

We have already discussed in details about domain without domain you can not do hosting first you have chose your website name like physicseasytips.com registration on DNS server then you can use hosting. Without name what you will do hosting to understand better relation between hosting and domain. We will take an example so that both term hosting and domain should clear concept.

Suppose if you want to make a house then what do you .First you buy the land means registration of land on your name so domain is just like registration of land with your website name . Now after registration of land you buy other material like cement, rod, brick to make the house on that land, Similarly hosting is making the house on that land with your website name.

Hosting and domain expiry period 

Well you should know expiry period of hosting and domain every year you have to renew your hosting as well as domain if you will not renew then you hosting and domain will expire then you will lose your website name as well as your website data.

How data and content is uploaded in hosting 

After buy hosting of any company .you will get a control panel generally called Cpanel. First you will login to your control panel hosting .After login you can do anything . You can write content, you can upload image, video to your website hosting server.

How to connect hosting with domain 

Your domain name need to map with your hosting server. IP address of hosting server is map with DNS server CNAME only IP address and name is map with hosting server so that hosting server can recognize your domain.

Can buy hosting other company and domain other company ?  

Yes you can buy hosting and domain with two different company. But as told to make website live you have to map domain with your hosting server then your website can be live and anyone from any part of the world will be able to visit or can access your website.
After making site live you can told the world to see my post on my domain like physicseasytips.com. You can refer to learn what is internet in 10 minutes 
what is internet history We will continue in next post.

Now i hope that you have understand domain name and hosting and enjoyed learning what is web hosting. If you like comment and share, Thanks for reading and sharing hosting learn and grow.

Dated 12th Nov 2018