(a) Explain thermiopic emission (b) State two applications of electrical conduction through gases.

(a) List two factors that can affect the rate of diffusion (b) State two examples to illustrate the effects of surface tension.

A wire of length 5.0 m and diameter 2.0 mm extends by 0.25 mm when a force of 50 N was used to stretch it from its end. Calculate the; (a) stress on the wire...

State two effects to show (a) the existence of matter waves; (b) that radiation behaves like particles.

A stone projected horizontally from the top of a tower with a speed of 4 ms\(^{-1}\) lands on the level ground at a horizontal distance 25 m from the foot of...

Define (a) electrolysis; (b) electrolyte; (c) electrode.

Copper of thickness d is plated on the cathode of a copper voltameter. If the total surface area of the cathode is 60 cm\(^2\) and a steady current of 5.0 A ...

A particle is projected at an angle of 30° to the horizontal with a speed of 250 ms\(^{-1}\). Calculate the; (a) total time of flight of the particle; (b) sp...

State; (a) the difference between plane polarized light and ordinary light; (b) two uses of polaroids.