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NEET UG CHEMISTRY MCQ: STRUCTURE OF ATOM

1 Easy

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Application +4 | -1

If h is Planck’s constant, the momentum of a photon of wavelength 0.01 Å is:

View answer and explanation

Correct option: D

{10^{12}}h

Option D (

{10^{12}}h

) is correct because the momentum of a photon is given by

p = \frac{h}{\lambda}

, where

\lambda

is the wavelength. Given

\lambda = 0.01 \AA = 0.01 \times 10^{-10} m = 10^{-12} m

, so

p = \frac{h}{10^{-12}} = 10^{12}h

.

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{p}_{{x}}

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