Physics Past Questions and Answers

The eye defect illustrated in the diagram above can be corrected by a

When an astronomical telescope is in normal adjustment, the focal length of the objective lens is 50cm and that of the eyepiece is 2.5om. What is the distance between the lenses?

Which of the following is used for controlling the amount of light entering the eye?

The angle of deviation of light of various colours passing through a glass prism decreases in the order of

The change of the direction of a wavefront as a result of a change in the velocity of the wave in another medium is called