Physics Past Questions and Answers

If a source of sound is moving, a stationary listener will hear a sound of different frequency. This is called

Which of the following elements are real magnetic materials?

An inclined plane of angle \(\theta\), acting as a simple machine, has a velocity ratio

Heat may be transferred by conduction, convection and radiation. By which of these methods does heat travel through vacuum?

Which of the following statements is applicable to a real image formed by a concave mirror? i. it can be observed on a screen ii. it is always inverted and in front of the mirror iii. it only seams to exist IV. it is formed by the actual converging of rays of light