## Class 12 CBSE conceptual questions for board exams

This post contains conceptual questions for class 12 board exams although anyone can solve them if interested.
Try to solve these questions on your own in my net post I’ll publish 3 marks and 5 marks sample questions.

Question 1. W cm apart on a hat is the amount of work done in moving 100 nC charge between two points 5 cm apart on an equipotential surface?

## Wavelength of a particle moving with relativistic speed

Question

Obtain expression for the wavelength of a particle moving with relativistic speed.

Solution

The relativistic momentum of a particle is given by

## Solving physics problems

Lots of time students me how can they solve physics problems and they say that they are having difficulty in solving physics problems. So here I decided to address this issue. Now first of all I would say that do not be afraid of the subject as I say again and again physics to me is most basic of all sciences and you must find the subject interesting and give yourself reasons for studying it for me it was just what I wanted to study till my masters degree and now I like helping students understanding physics.