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What is the energyof photons that corres...

What is the energyof photons that corresponds to a wave number `2.5 xx 10^-5 cm^-1`

A

`2.5 xx 10^-20 erg`

B

`5.1 xx 10^-23 erg`

C

`5 .0 xx 10^-21 erg`

D

`8.5 xx 10^-2 erg`

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