Physics Past Questions and Answers

If a man is standing between two parallel plane mirrors with their reflecting surfaces facing each other, how many images of the man will be formed?

In the Hare's apparatus, water rises to a height of \(26.5 \mathrm{~cm}\) in one limb. If a liquid rises to a height of \(20.4 \mathrm{~cm}\) in the other limb, what is relative density of the liquid?

A p-m junction diode is used as ____________

The sharpness of the boundaries of the shadow of an object is determined by the ____________

A body of mass \(4 \mathrm{~kg}\) is acted on by a constant force of \(12 \mathrm{~N}\) for 3 seconds.
The kinetic energy gained by the body at the end of the time is ____________