Question

3. Radiations of frequency vare incident on a photosensitive
metal. The maximum K.E. of the photoelectrons is
E. When the frequency of the incident radiation is
doubled; what is the maximum kinetic energy of the
photoelectrons?
(a) 2E
(b) 4E
(c) E+ hv
(d) E-hv​

Answer 1

ANSWER;-

•                   The frequency of incident light ... a photosensitive metal plate is doubled, the KE of the emitted photoelectrons is. ... From Einstein's equation for photoelectric effect , the maximum kinetic energy ... If a radiation of wavelength 4000 A0​ falls on it, the maximum kinetic energy ...

option (c)