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Calculate the frequency of light photon ...

Calculate the frequency of light photon of energy `2.24` eV.

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Given `E = 2.24` eV `=2.24 xx 1.6 xx 10^(-19)` J, V = ?
E = hv `v = E/h`
`=(2.24xx1.6xx10^(-19))/(6.625xx10^(-34))=5.409xx10^(-14)`Hz.
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