Physics Past Questions and Answers

A ray of light is incident at an angle of 30° on a glass prism of refractive index 1.5. Calculate the angle through which the ray is minimally deviated in the prism (the medium surrounding the prism is air)

At which of the following distances from the lens should as Ii de be placed in a slide projector if the focal length of the projection lens?

What of the camera corresponds to the iris of the eye?

A car of mass 1000 kg travels with a velocity 45 km/h on a rough road and it is brought to a rest after 10s.
What is the force exerted on the car?

A bridge 100m long weighs 500 kN. A lorry
weighing 100 KN is 25 m from one end of it. Find the force exerted at this support.