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What is the energy of a photon (in eV), ...

What is the energy of a photon (in eV), whose frequency is `10^(12)`MHz? [`h=6.63xx10^(-34)`]

A

`4.14xx10^(3)`MeV

B

`4.14xx10^(3)` eV

C

`4.14xx10^(2)` eV

D

`4.14xx10^(3)` KeV

Text Solution

Verified by Experts

The correct Answer is:
B
`E=hv=6.63xx10^(-34)xx10^(12)xx10^(6)J`
`=6.63xx10^(-16)J`
`=6.63 xx 10^(-16)J`
`=(6.63xx10^(-16))/(1.6xx10^(-19))eV`
`=4.14 xx 10^(3) eV`
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