What is the velocity of a photon?

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) photon is a quantum of electromagnetic radiation. According to the theory of relativity and the properties of electromagnetic waves,all electromag

Vedclass · Accepted Answer

$3 	imes 10^8 \ m/s$

Vedclass · Answer

(A) photon is a quantum of electromagnetic radiation. According to the theory of relativity and the properties of electromagnetic waves,all electromagnetic waves travel at the speed of light in a vacuum. The speed of light in a vacuum is denoted by $c$ and is approximately $3 	imes 10^8 \ m/s$. Therefore,the velocity of a photon in a vacuum is $3 	imes 10^8 \ m/s$.

Similar Questions

If $h$ is Planck's constant in $SI$ system,the momentum of a photon of wavelength $0.01 \, \mathring{A}$ is:

The momentum of a photon of wavelength $\lambda$ is

$A$ photon of frequency $v$ has a momentum associated with it. If the speed of light is $c$,then the momentum is .......

The value of Planck's constant is

In pair annihilation,an electron and a positron destroy each other to produce gamma radiation. How is the momentum conserved?

Vedclass Test Series

Exam Paper Generator

Online Exam Module