Question

The retarding potential for having zero photo-electron current

• A. is proportional to the wavelength of incident light
• B. increases uniformly with the increase in the wavelength of incident light
• C. is proportional to the frequency of incident light
• D. increases uniformly with the increase in the frequency of incident light wave

Answer 1

Answer: (D)

Higher the frequency of incident light, higher will be the stopping potential. Thus, the value of electric current will become zero.