Wavelength of a photon is $2.0 \times {10^{ - 11}}{\rm{m}},h = 6.6 \times {10^{ - 34}}\;{\rm{Js}}.$. The momentum of photon is:

$3.3 \times {10^{ - 23}}{\rm{\;kg\;m\;}}{{\rm{s}}^{ - 1}}$

$3.3 \times {10^{22}}{\rm{\;kg\;m\;}}{{\rm{s}}^{ - 1}}$

$1.452 \times {10^{ - 44}}{\rm{\;kg\;m\;}}{{\rm{s}}^{ - 1}}$

$6.89 \times {10^{43}}{\rm{\;kg\;m\;}}{{\rm{s}}^{ - 1}}$

NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

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Wavelength of a photon is

2.0 \times {10^{ - 11}}\mathrm{m},h = 6.6 \times {10^{ - 34}}\;\mathrm{Js}.

. The momentum of photon is:

View answer and explanation

Correct option: A

3.3 \times {10^{ - 23}}\mathrm{\;kg\;m\;}{\mathrm{s}^{ - 1}}

Option A (

3.3 \times {10^{ - 23}}\mathrm{\;kg\;m\;}{\mathrm{s}^{ - 1}}

) is correct because it is calculated using the formula relating momentum and wavelength of a photon.

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