STANDARDPhysics-Wave Optics
STANDARD Physics Young's Double Slit Experiment MCQ Question
Type: MCQ-numerical-Medium-Class 12
Young’s experiment is performed with light of wavelength 6000 Å wherein 16 fringes occupy a certain region on the screen. If 24 fringes occupy the same region with another light of wavelength λ, then λ is
A
6000 Å
B
4500 Å
C
5000 Å
D
4000 Å
Correct Answer
Option D
Detailed Explanation
Using the formula n₁λ₁ = n₂λ₂, where n₁ = 16, λ₁ = 6000 Å, n₂ = 24, we find λ₂ = (16 × 6000) / 24 = 4000 Å.
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