Why does stopping potential depends on frequency?

Why does stopping potential depends on frequency?

The stopping potential is more negative for higher frequencies of incident radiations. This means that greater the frequency of incident radiations, greater is the maximum kinetic energy of the photo electrons. That is why a greater retarding potential is required to stop them completely.

Is stopping potential negative or positive?

The negative potential of the collector plate at which the photoelectric current becomes zero is called stopping potential or cut – off potential.

Does the intensity of the light affect the stopping potential?

The stopping potential depends on the kinetic energy of the electrons, which is affected only by the frequency of incoming light and not by its intensity.

What is the value of stopping potential at threshold frequency?

Threshold frequency is the minimum frequency of the incident light which can cause the ejection of electrons without giving them additional energy. The amount of potential that is required to stop the electron having the maximum kinetic energy from moving is known as stopping potential.

What will be the value of stopping potential if frequency of incident radiation is equal to threshold frequency?

zero

What is the meaning of threshold frequency?

: the minimum frequency of radiation that will produce a photoelectric effect.

How would you define threshold frequency 12?

Threshold frequency: Threshold frequency is the minimum frequency of the incident radiation below which photoelectric emission is not possible irrespective of the intensity of the incident radiation.

What is the only way to increase the number of photoelectrons?

The intensity of light does not effect the maximum kinetic energy of the released electrons. If the threshold frequency is met, a higher intensity of light (increasing the number of incident photons) will increase the number of photoelectrons released but not their energy.