Physics Past Questions and Answers

State three observable phenomena in which waves behave like a particle.

List three magnetic elements that determine the earth’s magnetic field at a point.

Explain each of the following terms as used in Electronics.
(a) free electrons;
(b) holes.

(a) State the principle of operation of fibre optics.
(b) State two applications of fibre optics in medicine.

(a) Define diffusion
(b) State two factors that affect the rate of diffusion