# To determine To Describe: A method to measure energy of a photon.

Humberto Campbell 2022-11-04 Answered
To determine
To Describe: A method to measure energy of a photon.
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## Answers (1)

Claudia Woods
Answered 2022-11-05 Author has 15 answers
Explanation of Solution
Introduction:
Light is composed of small packets of energy. Each packet is called a photon.
As per Planck-Einstein’s relation:
$E=hv$
Here, E is the energy of the photon, h is the Planck’s constant and v represents the frequency of the photon.
The energy of a photon can be measured using this relation.
To Describe: A method to measure momentum of a photon.
Explanation of Solution
Introduction:
Light is composed of small packets of energy. Each packet is called a photon.
The momentum of a photon can be measured using the following relation:
$p=\frac{E}{c}$Here, E is the energy which can be measured using Planck-Einstein relation and c is the speed of light.
To Describe: The method to measure wavelength of photon.
Explanation of Solution
Introduction:
Light is composed of small packets of energy. Each packet is called a photon.
With the knowledge of momentum, the wavelength of the photon can be measured using the de Broglie’s equation:
$\lambda =\frac{h}{p}$
Where, h is the Planck’s constant.
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