Assertion : In He-Ne laser, population inversion takes place between energy levels of neon atoms...
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Assertion : In He-Ne laser, population inversion takes place between energy levels of neon atoms.
\( P \)
Reason : Helium atoms have a meta- stable energy
W level.
(1) A
(2) B
(3) \( \mathrm{C} \)
(4) D
- (A) Both assertion and reason are correct statements, and reason is the correct explanation of the assertion.
- (B) Both assertion and reason are correct statements, but reason is not the correct explanation of the assertion.
(C) Assertion is correct, but reason is wrong statement.
- (D) Assertion is wrong, but reason is correct statement.
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