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Light of wavelength λ from a point source falls on a small circular obstacle of diameter d. Dark and bright circular rings around a central bright spot are formed on a screen beyond the obstacle. The distance between the screen and obstacle is D. Then, the condition for the formaton of rings, is
Options
(a) √λ≈d/4D
(b) λ≈d²/4D
(c) d≈λ²/D
(d) λ≈D/4
Correct Answer:
λ≈d²/4D
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- If μᵥ=1.5230 and μʀ=15.145, then dispersive power of crown glass is
- The radius of curvature of the convex face of a plano-convex lens is 12 cm
- A circular disc of radius R is removed from a bigger circular disc of radius 2R
- The electric potential at the surface of an atomic nucleus (z=50) of radius
- Pure Si at 500 K has equal number of electron (nₑ) and hole (nₕ) concentrations
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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