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A gas absorbs a photon of 355 nm and emi...

A gas absorbs a photon of 355 nm and emits at two wavelengths. If one of the emissions is at 680 nm, the other is at

A

325 nm

B

743 nm

C

518 nm

D

1035 nm

Text Solution

Verified by Experts

The correct Answer is:
B
From the relation `(1)/(lamda_("absorbed")) =(1)/(lamda_(1)) +(1)/(lamda_(2)) rArr (1)/(355)=(1)/(680) +(1)/(lamda_(2))` Solving, we get `lamda_(2)=743` nm.
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