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The number of photons of light having wa...

The number of photons of light having wavelength 100 nm which can provide 1 J energy is nearly:

A

`10^(7)` photons

B

`5xx10^(18)` photons

C

`5xx10^(17)` photons

D

`5xx10^(7)` photons

Text Solution

Verified by Experts

The correct Answer is:
C
`E=(nhc)/(lamda)`
`n=(Elamda)/(hc)=(1xx100xx10^(-9))/(6.626xx10^(-34)xx3xx10^(8))=5xx10^(17)`.
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