Question

The number of photo electrons emitted for light of a frequency $v$ (higher than the threshold frequency $v_0)$ is proportional to

• A. threshold frequency $(v_0)$
• B. intensity of light
• C. frequency of light $(v)$
• D. $v-v_0$

Answer 1

Answer: (B)

The number of photoelectrons decide the photocurrent. Assuming that the number of electrons emitted depends on the number of photons incident, the number of photoelectrons depend on the intensity of light.