Given below are two statements: Statement I: Two photons having equal… | JEE Main 2021 (24 Feb, Shift 1)

Q24JEE Main 2021 · 24 FEB · SHIFT 1Easy

Photons: Energy, Momentum & Radiation Pressure

Given below are two statements:

Statement I: Two photons having equal linear momenta have equal wavelengths. Statement II: If the wavelength of 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.

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Answer: (d)

$p = \frac{h}{\lambda}$ : equal momenta mean equal wavelengths, so Statement I is true.
$p = \frac{h}{\lambda}$ and $E = \frac{hc}{\lambda}$ : decreasing $\lambda$ increases both, so Statement II is false.
So the answer is (d).

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Photons: Energy, Momentum & Radiation Pressure question from JEE Main 2021 (24 Feb, Shift 1)

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