Physics Electron, Photon, Photoelectric Effect and X-rays Photon and Photoelectric Effect Single Correct MCQ
Published on: September 12, 2026

Which of the following is incorrect statement regarding photon?

A
Photon exerts no pressure
B
Photon energy is hv
C
Photon rest mass is zero
D
None of these

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Text Solution

Verified by Experts
The correct answer is:
A
Step 1: Understand the properties of photons. Photons are particles of light that carry energy and momentum.
Step 2: Analyze Option A: Photon exerts no pressure. This statement is incorrect because photons do indeed exert pressure when they strike a surface, a phenomenon known as radiation pressure.
Step 3: Analyze Option B: Photon energy is hv. This statement is correct, where h is Planck's constant and v (or nu) is the frequency of the photon.
Step 4: Analyze Option C: Photon rest mass is zero. This statement is also correct, as photons are massless particles.
Step 5: Analyze Option D: None of these. Since Option A is incorrect, Option D is not correct in this context.
Conclusion: Based on the analysis, the correct answer is A.

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