Photoelectrons are being obtained by irradiating zinc by a radiation of 3100 Å. In order to increase the kinetic energy of ejected photoelectrons.
A. the intensity of radiation should be increased.
B. the wave length of radiation should be increased.
C. the wavelength of radiation should be decreased.
D. both wavelength and intesity of radiation should be increased.
Answer:C
Photoelectrons are being obtained by irradiating zinc by a radiation of 3100 Å. In order to increase the kinetic energy of ejected photoelectrons.
A. the intensity of radiation should be increased. B. the wave length of radiation should be increased. C. the wavelength of radiation should be decreased. D. both wavelength and intesity of radiation should be increased.