AIPMT PRELIMS2010Physics-Optics

AIPMT PRELIMS 2010 Physics Photon Energy MCQ Question

Type: MCQ-numerical-Medium-Class 12

A source S₁ is producing 10¹⁵ photons per second of wavelength 5000 Å. Another source S₂ is producing 1.02 ×10¹⁵ photons per second of wavelength 5100 Å. Then (power of S₂)/(power of S₁) is equal to

A

0.98

B

1.00

C

1.02

D

1.04

Correct Answer

Option B

Detailed Explanation

The power ratio is given by P₂/P₁ = (n₂λ₁)/(n₁λ₂). Substituting the given values: P₂/P₁ = (1.02 × 10¹⁵ × 5000 Å) / (10¹⁵ × 5100 Å) = 1.

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