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Dual Nature of Matter

JEE Main level, single correct, medium

162 of 200

Question 162 of 200

Given below are two statements:
Statement $I:$ Two photons having equal linear momenta have equal wavelengths.
Statement $II:$ If the wavelength of the photon is decreased, then the momentum and energy of a photon will also decrease.
In the light of the above statements, choose the correct answer from the options given below.

Show answer and solution

Answer: (C) Statement $I$ is true but Statement $II$ is false

If linear momentum are equal then wavelength also equal.
The momentum

p

and energy

E

of a photon is given by,

p=\dfrac{h}{\lambda },E=\dfrac{hc}{\lambda }

; where

c

is speed of light and

h

is Plank's constant.
On decreasing wavelength, momentum and energy of photon increases.

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JEE Main 2025 Apr 2 Shift 1 question paper

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