Question

In the photo-electron emission, the energy of the emitted
electron is
(a) greater than the incident photon
(b) same as than of the incident photon
(c) smaller than the incident photon
(d) proportional to the intensity of incident photon

Answer 1

In photoelectric emission the energy of the emitted electron is proportional to the intensity of the incident Photon.

Option: (d)

Explanation:

• Intensity is the amount of flux present per unit area. As a result if the intensity is hike the flux is also High.

• Therefore the amount of energy that is emitted to the surface is also high hence the the energy of the emitted electron increases with increase in the intensity of the incident Photon.

• This can be calculated by using the Planck's Constant and the wavelength of the photon.

To know more about photoelectric emission,

Define threshold frequency for photoelectric emission. Brainly.in

https://brainly.in/question/8574574

Answer 2

In the photo-electron emission, the energy of the emitted  electron is smaller than the incident photon

Explanation:

According to photo electric effect, when a beam of light i.e. photon ray incident on the surface of a metal, an electron is ejected from the surface of metal.

In this phenomenon, the energy of the photon that is incident on metal surface is shared in two ways that are some amount of energy is used to eject the electron. And remaining energy is used to gain kinetic energy for the electron.

Hence, the energy of ejected electron is always smaller than the incident photon.

Therefore the correct answer is option (c)