K.C.S.E Physics Q & A - MODEL 1996PP2QN07

K.C.S.E Physics Q & A - MODEL 1996PP2QN07

(a) Describe with the aid of a diagram an experiment set up for observing photoelectric effect
(b) Table 2 shows the relationship between the wavelength, of a radiation falling on the surface and the energy, k of the emitted electrons

(i) Plot a graph of energy k ( y – axis) against the frequency, f, of the incident light
(ii) Determine the work function Φ of the surface used 

(Speed of light, c = 3.00 * 108 ms^-1 planks constant h = 6.663 * 10^-34JS)

answers