Question

The momentum of a photon with energy 20ev is -

EXPLAIN WITH METHOD

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Answer 1

Answer:

p~10.6×10^-27kg m/s

Explanation:

given:

E=20ev=20×1.6×10^-19J

p=?

c~3×10^8m/s

P=20×1.6×10^-19/3×10^8

P~10.6×10^-27kg m/s

hope it will helps you