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1 mol of photons each of frequency 250s^...

`1 mol` of photons each of frequency `250s^(-1)` would have approximately a total enegry of

A

10 erg

B

1 Joule

C

1 eV

D

1 MeV

Text Solution

Verified by Experts

The correct Answer is:
A
`v=2500s^(-1)`
`therefore` Energy of a photon, E = hv
= `(6.626xx10^(-34)xx2500)J`
`therefore` Energy of one mole of photon
= `(6.626xx10^(-34)xx2500xx6.022xx10^(23))J`
= `9.977xx10^(-7)J~~10erg`.
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