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A pulsed laser has an average output pow...

A pulsed laser has an average output power of 4.0 W. Each pulse consists of light at wavelength `5.0xx10^(-7)m` and has a 25 ms duration. How many photons are emitted in a single pulse?

A

`1.0xx10^(17)`

B

`3.7xx10^(17)`

C

`2.5xx10^(17)`

D

`5.0xx10^(17)`

Text Solution

Verified by Experts

The correct Answer is:
C
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