Question

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a photon of wavelength 4400 A°is passing through a vacuum. effective mass and momentum of photon respectively???

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Answer 1

Velocity of photon =velocity of light. M=h/lambda*v ... We know that wavelength=Planck`s constant/mass × velocityOr ...

As we know that, λ = h/p; h = plank's constant = 6.626×10⁻³⁴ J-sp = momentum of proton = mass× velocity =m×v∴ λ .