A nucleus of mass M emits $\gamma$ -ray photon of frequency 'v'. The loss of internal energy by the nucleus is :[Take 'c' as the speed of electromagnetic wave]

Question

A nucleus of mass M emits $\gamma$ -ray photon of frequency 'v'. The loss of internal energy by the nucleus is :

[Take 'c' as the speed of electromagnetic wave]

$hv\left[ {1 + {{hv} \over {2M{c^2}}}} \right]$

$hv\left[ {1 - {{hv} \over {2M{c^2}}}} \right]$

Solution

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