If frequency of light is greater than threshold frequency, then in photoelectric effect the number of electrons increases with an increase in _ of light :

Explanation

In the photoelectric effect, when the frequency of light exceeds a certain threshold frequency, photons can eject electrons from a material. The number of electrons emitted is directly related to the intensity of the light. Intensity measures the number of photons hitting the surface per unit area per unit time; thus, a higher intensity means more photons are available to knock electrons loose. Therefore, increasing the intensity results in more electrons being emitted.Option A (Frequency) is incorrect because while frequency determines the energy of the emitted electrons, it does not influence the number of electrons emitted once the threshold is surpassed. Option B (Kinetic energy) is also incorrect as it relates to the energy of the emitted electrons, not their quantity. Option D (Momentum) does not apply in this context, as it does not affect the count of emitted electrons.