| ⇦ | 
| ⇨ |
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.
Related Questions: - The electric field at a distance 3R / 2 from the centre of a charged conducting
- In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.
- When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric field at a distance 3R / 2 from the centre of a charged conducting
- In a primary coil 5 A current is flowing on 220 V. In the secondary coil 2200 V
- A tuning fork frequency 512 Hz is vibrated with a sonometer wire and 6 beats per second
- A force of 10N is applied on a body for 3 sec and the corresponding displacement 6 m.
- When 1 kg of ice at 0⁰C melts to water at 0⁰C, the resulting change in its entropy
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply