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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
- The magnifying power of a telescope is 9. When it is adjusted for parallel rays
- Four point masses, each of value m, are placed at the corners of a square ABCD
- Alternating current cannot be measured by D.C Ammeter because
- Light from the constellation Virgo is observed to increase in wavelength by 0.4%
- A capacitor of 10 µF charged upto 250 volt is connected in parallel with another
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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