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A certain transition emits 6.37 xx 10^(1...

A certain transition emits `6.37 xx 10^(15)` quanta per second per square meter. Calculate the power output in joule square metre per second. Given `lambda = 632.8 nm`

A

`5xx10^(-5)j m^(-2)s^(-1)`

B

`2xx10^(-3)j m^(-2) s^(-1)`

C

`9.2 xx10^(-3) jm^(-2)s^(-1)`

D

`4.6 xx10^(-6) j m^(-2) s^(-1)`

Text Solution

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The correct Answer is:
B
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