Question

Which Light photon has least momentum?
a) Red
b) Blue
c) Yellow
d) Green

and Why and How?​

Answer 1

Answer:

yellow is the answer

Explanation:

hopr it's helpful

Answer 2

Answer: The correct answer is option (a). Photon of Red light has least momentum.

Explanation:

The relationship between momentum $(p)$ and wavelength (λ) is as follows:

λ $= \frac{h}{p}$

where $h$ is the plank's constant.

As  $p$ ∝ $1$ / λ

It means momentum decreases as the wavelength increases. This results in an increase in energy in both cases.

The increasing order of wavelength of the different photons of light is:

Blue < Green < Yellow < Red

As the photon of red light has the maximum wavelength, therefore its momentum will be minimum.

So the correct answer is option (a).

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