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If an electron drops from 4th orbit to 2...

If an electron drops from 4th orbit to 2nd orbit in an H-atom, then

A

it gains `2.55eV` of potential energy

B

it gains `2.55eV`of total energy

C

it emits a `2.55 eV` electron

D

it emits a `2,55 eV`photon

Text Solution

Verified by Experts

The correct Answer is:
D
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