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Monochromatic light of frequency 6xx10^(...

Monochromatic light of frequency `6xx10^(14)Hz` is produced by a laser. The power emitted is `2xx10^(-3)` W.
The number of photons emitted per second is
`("Given h"=6.63xx10^(-34)Js)`

A

`5 xx 10^(14)`

B

`5 xx 10^(15)`

C

`5 xx 10^(16)`

D

`5 xx 10^(17)`

Text Solution

Verified by Experts

The correct Answer is:
B
`n=(P)/(hv)=(2xx10^(-3))/(6.62xx10^(-34)xx6xx10^(14))=5xx10^(15)`
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