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Intensity in Photon Model

The momentum ...

Question

The momentum of a photon of frequency v is

A

\frac{h v}{c}

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B

h v c

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C

\frac{h}{c v}

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D

\frac{v}{c h}

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Solution

The correct option is A $\frac{h v}{c}$
We know
$E = m c^{2} (f o r p h o t o n)$
$h v = m c^{2}$

$m c = \frac{h v}{c}$

$P = \frac{h v}{c}$

So, the answer is option (A).

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