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Assertion In He-Nelaser, population inve...

Assertion In He-Nelaser, population inversion takes place between energy levels of neon atoms.
Reason Helium atoms have a metastable energy level.

A

If both the Asseration and Reason are true and reason explains the Assertion :

B

If both the Assertion and Reason are true but reason does ot explain the Assertion :

C

If Assertion is true but reason false

D

If Assertion is false but reason is true

Text Solution

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The correct Answer is:
B
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