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Given a photon with wavelength 430 nm, find the energy and momentum of the photon. What equivalent mass would a

particle have if all the energy of the proton were converted to mass?

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Given wavelength in usonm
ware length ( ) = 430 um
= 430 0 10
Energy of a photon .(E ) = hu
= 6.62 X 10 X3X 108
- 6.62 x 10
534 x3 X 10 8
430 0 x 15 10
- 20
E = 46 1 10 Joule
Here, Momentym P = E

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