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An important spetral emission line has a...

An important spetral emission line has a wavelength of 21 cm. The corresponding photon energy is
`(h=6.62 xx10^(-34)Js ,c=3xx10^(8)m//s)`

A

`5.9 xx 10^(4) eV`

B

`5.9 xx 10^(-6) eV`

C

`5.9 xx 10^(-8) eV`

D

`11.8 xx10^(-6) eV`

Text Solution

Verified by Experts

The correct Answer is:
B
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