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Assertion (A): Excited nucleus can emit radiation, but excited electron can not emit radiation
Reason (R): Energy levels of excited nucleus is in Mev, excited electron is in ev and radiation has energy in Mev

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Both A and R are true, and R is correct explanation of A

Both A and R are true, and R is not the correct explanation of A

A is false and R is false

A is true but R is false

answer is A.

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Detailed Solution

Excited nucleus can emit radiation, but excited electron cannot. This is because energy of electronic energy levels is in the range of electron volt (eV) and not MeV (million electronic volt)

Both A and R are true, and R is correct explanation of A

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