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What is the momentum of a photon having ...

What is the momentum of a photon having frequency `1.5 xx 10^(13) Hz` ?

A

`3.3 xx 10^(-29) kg m//s`

B

`3.3 xx 10^(-34) kg m//s`

C

`6.6 xx 10^(-34) kg m//s`

D

`6.6 xx 10^(-32) kg m//s`

Text Solution

Verified by Experts

The correct Answer is:
A
Energy of a photon ` E = (hupsilon)/c`
Momentum of a photon, `p=E/c = (hupsilon)/c`
`p = ((6.6 xx10^(34)Js)(1.5 xx10^(13)Hz))/(3xx10^8 m//s) =3.3 xx 10^(-29) ` kg m/s
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