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Question

A photon of frequency $x$ has an energy
$\frac{h}{x^{2}}$
$h x$
$\frac{x}{h}$
$h x^{2}$

A

\frac{h}{x^{2}}

B

h x

C

\frac{x}{h}

D

h x^{2}

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Solution

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Energy of photon is $h v$ , where $v$ is its frequency.

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