Question

light is incident on the two photosensitive material having work function w1 and ww1 is greater than w2 in which case will the kinetic energy of the emitted electron will be greater and why

Answer 1

Heya friend,


Here is your answer,

Well according to the formula i.e,

=> Kinetic Energy = hv - W

Thus,
If kinetic energy is more, work function would be less and vice versa.

Now,

=> W1 > W2 (given)

Thus, W2 is less than W1 therefore the kinetic energy of the emitted electron with work function as W2 will be greater.

Thus,
Kinetic energy of emitted electron with work function W2 would be greater.


Hope it helps you.
Thank you.