Question

(vi) Find the momentum of a photon in radiation of wavelength 270 nm.

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Answer 1

It could be calculated using De-broglie equation:

p = h / λ ,

where,

p = momentum of a photon

h = Planck's constant

λ = wavelength of light.

So, using the above formula,

p = 6.6 x 10^-34 J.s

divided by

270 x 10^-9 m,

which will be equal to 2.44 x 10^-27 kg m s^-1

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Hope this helps