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Strike while the iron is hot !
AskPhysics Blog Feed Dear students, CBSE has given you more time for exams. We have approximately 7 days before the Physics exams. How to use this seven days effectively for a thorough revision is very important. 7-8 days of sleeping is a must. One hour of exercise 1 to 2 hours for break fast lunch […]
Dreams come true only for those who do their part
AskPhysics Blog Feed I was recently narrating the life story of a girl from Dindigul who got married to a police constable at the age of 14. She was not even reached class 10. She became the mother of two kids by the age of 18. During that time she had to accompany her husband […]
“DID THOSE PHILOSOPHERS WORK IN VAIN”
AskPhysics Blog Feed “The Philosophers who worked in search of the Philosophers’ stone and those set themselves dedicated to find the elixir of life”The works of those in search of the Philosopher’s stone didn’t go in vain, They made the beginning. The beginning itself was so wonderful that anyone who got touched by the idea […]
Quarks, conservation, entanglement
AskPhysics Blog Feed Doubt from AskPhysics.comI have heard the following statements-> 1. Quarks always exist in a group of 2 or 3, and can not stand alone. 2. Protons are made up of 2 up quarks, and 1 down quark. 3. Quantum mechanics allows us to entangle a particle by somehow dividing it into 2(For […]
Prepare for Physics oral test too during lockdown
AskPhysics Blog Feed Plus Two Physics Oral Test series Many schools have started oral questioning also as part of diagnostic and formative assessment. The initiative was … Prepare for Physics oral test too during lockdown The post Prepare for Physics oral test too during lockdown appeared first on Ask Physics.
Theory of Relativity
AskPhysics Blog Feed The basic concepts of relativity are explained in a very simplified way that are easy to understood by Mr. Vivek Sawhney in this YouTube Video… The video focuses upon the general discussion on Theory of Relativity….What is the theory of Relativity? What is time dilation and length contraction? SUBSCRIBE to the YouTube […]
A numerical problem from motion in 1 Dimension
AskPhysics Blog Feed A boy plays with a ball on a field surrounded by a fence which has a height of 2.5m . He kicks the ball vertically up from a height of 0.4m with a speed of 14 ms−1. (a) What is the maximum height of the ball above the fence? (b) What is […]

DON’T WORRY NOW. CBSE RESULTS MAY A TAKE A FEW MORE DAYS TO COME

15/05/2014 / Leave a comment

We could see a hurry to schools and other centres by students and parents regarding the declaration of results. The confusion created by some schools by saying that CBSE is going to declare the result on 15 May caused the havoc.

Don’t worry now. CBSE results may a take a few more days to come.

CBSE has already given a statement that results will be declared before 26 May 2014. So, let;s wait a few days without panicking.

Let’s hope a very good result this time.

Can the frictional electricity produced during landing of a plane be used for constructive purposes?

02/09/2012 / Leave a comment

As we know that in aeroplane during landing the charged produced in it due to the friction with ground are earthed through its wheels; can this charge be stored with the help of a capacitor and used for useful purpose?

Answer:

I feel that this is a metter for research.

If you feel otherwise and know some method to tap this potential, please post.

Solutions to HC Verma’s Concepts of Physics – Weblinks

18/07/2012 / Leave a comment

We found the following website links which offer solutions to HC Verma’s Concepts of Physics.

Though there are some errors and omissions, these links will help at least get ideas which lead towards the solution. Students are advised to try to solve the problems themselves and consult the solution only if they are not getting the correct answer. Please satisfy your own knowledge and understanding before believing on any online solutions.

Please bring to our notice if you find any error in these online solutions.

Weblinks for Solutions to H C Verma’s Concepts of Physics

DOWNLOAD COMPLETE SOLUTIONS IN PDF FORMAT HERE

Rotational Mechanics – HC Verma’s Concepts of Physics – Solution

18/07/2012 / Leave a comment

HC Verma’s Concepts of Physics – Chapter 10 – Question 15

Find the moment of inertia of a uniform square plate of mass m and edge a about one of its diagonals.

The question was posted by Ankit

Solution:

Let the moment of inertia about the axis through the centre of the square plate perpendicular to the plane, assumed to be along Z axis, be I. Now the square plate will be in the XY plane. Let the X axis and Y axis be parallel to the edges and passing through the centre.

Then, we know that Ix = Iy = ma²/12

Then, according to perpendicular axis theorem,

Iz = Ix + Iy = 2Ix=2ma²/12=ma²/6

Now, imagine that X and Y axes are along the diagonals. (The diagonals of a square are also mutually perpendicular.)

Again, according to perpendicular axis theorem, Iz = Ix + Iy = 2Ix

The MI about the diagonal about its diagonal, Ix = Iz/2 = ma²/12

Relative Nature of Motion(plustwophysics.com)
Doubts on electric field lines and flux(plustwophysics.com)

What does a rheostat control?

30/06/2012 / Leave a comment

What does Rheostat controls? electron drift velocity or quantity of electrons?

We know I=nAve
I=current
n=quantity of electron
A=conductor area
e=electron charge
v=drift velocity

(Asked Partha)

What is Physics 212 ?

29/03/2012 / Leave a comment

Were you searching for Physics 212?

The following links will help you.

http://online.physics.uiuc.edu/courses/phys212/spring12/

Physics 212 is the Physics Course on Electricity and Magnetism by University of Illinois.

(Many other colleges and universities may have a couse by the same name but dealing with different topics in Physics.

The advantage of Physics212course of Illinois is that many course materials and animations etc are available online and can be used by any prospective student.