Physics Past Questions and Answers

A car traveling at 30ms\(^{-1}\) overcomes a frictional resistance of 100N while moving. Calculate the power developed by the engine. [1 hp = 0.75 kW]

The quality of a note depends on its

A transverse wave can be distinguished from a longitudinal wave by

Refraction of lights differs from reflection in that, in refraction i. at least two media are involved ii. there is a change in the direction of the ray iii. the speed of the ray changes. Which of the statements above is/are correct?

Which of the following relations about the focal length f<sub style='font-size: smaller;'>o</sub> of the objective and focal length f<sub style='font-size: smaller;'>e</sub> of the eye piece of a compound is correct?