Question

Wavelength of photon is equal to the wavelength of electron movinh with kinetic energy 1.5ev. The value of energy of photon

Answer 1

Answer:

energy→hc/wavelength

Answer 2

Given,

The wavelength of the photon=wavelength of the electron

i.e,

λ$_{Ph}$= λ$_{e}$ =$\frac{12}{\sqrt{1.5} }$Â

The kinetic energy of the electron, Ke= 1.5eV

To Find,

The value of the energy of the photon.

Solution,

$E_{Ph}$= $\frac{12400}{12.27}$$\sqrt{1.5}$ = 1.24KeV

Hence, the value of the energy of the photon is 1.24KeV.