Question

Which one of the following is true in photoelectric emission

• A. Photoelectric current is directly proportional to the amplitude of light of a given frequency
• B. Photoelectric current is directly proportional to the intensity of light of a given frequency at moderate intensities
• C. Above the threshold frequency, the maximum K.E. of photoelectrons is inversely proportional to the frequency of incident light
• D. The threshold frequency depends upon the wavelength of incident light

Answer 1

The correct option is B Photoelectric current is directly proportional to the intensity of light of a given frequency at moderate intensities

Photoelectric current is directly proportional to the intensity of light of a given frequency at moderate intensities