Question

Mark the incorrect statement regarding the photoelectric effect.

• A. There is no time lag between the striking of light beam and the ejection of electrons from the metal surface
• B. The number of electrons ejected is inversely proportional to the intensity of light
• C. Photoelectric effect is not observed below threshold frequency
• D. The kinetic energy of the electrons increases with increase in frequency of light used

Answer 1

Answer: (B)

The number of electrons ejected is directly proportional to the intensity of light.