Question

When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons ____________.

विकल्प

• decreases

• increases

• first decreases and then increases

• remains same

Answer 1

When the work function of a metal increases, maximum kinetic energy of emitted photoelectrons decreases.

Explanation:

(K.E.)_max = hv - w₀

Hence if w₀ increase (K.E.)_max Decreases.