NEET Physics Question - Modern Physics - Photoelectric Effects and deBroglie Equation

Assertion (A): In photon-particle collision the total energy and total momentum are conserved.

Reason (R): The number of photons are conserved in a collision.

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Both (A) & (R) are true but the (R) is not the correct explanation of the (A)

(A) is true but (R) is false

Both (A) and (R) are false

Solution:

Concept: Conservation laws in collisions.
Formula: Total energy \(E_{\text{total}}\) and total momentum \(p_{\text{total}}\) are conserved in all collisions.
Solution: In photon-particle collisions, total energy and momentum are conserved. However, photons can be absorbed or emitted, so their number is not necessarily conserved. Hence, Assertion (A) is true, but Reason (R) is false.

Rankers Physics

Photon-Particle Collision

Solution:

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