In a photoelectric experiment, the wavelength of incident radiation is reduced from 6000 Å to 5000 Å then

Options

A. stopping potential will decrease
B. stopping potential will increase
C. K.E. of emitted electrons will decrease
D. the value of the work function will decrease

Answer

B

Explanation

If the wavelength of the incident radiation is decreased , the frequency is increased and the energy of incident radiation will increase. The work function will not change but the K.E. of the emitted photoelectrons will increase.
Stopping potential `(V_(0))` is proportional to K.E.
`:.V_(0)` will increase .