If linear momentum are equal then wavelength also equal.
The momentum p and energy E of a photon is given by,
p=λh,E=λhc; where c is speed of light and h is Plank's constant.
On decreasing wavelength, momentum and energy of photon increases.
JEE Main 2021 — Physics Modern Physics
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.
Held on 24 Feb 2021 · Verified 6 Jul 2026.
Both Statement I and Statement II are false
Both Statement I and Statement II are true
Statement I is true but Statement II is false
Statement I is false but Statement II is true
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