| ⇦ | 
| ⇨ |
An interference pattern was made by using red light. If the red light is replaced by blue light, the fringes will becomes
Options
(a) Wider
(b) Narrower
(c) Fainter
(d) Brighter
Correct Answer:
Narrower
Explanation:
Fringe width β = λD / d
β(ʀed) / β(ʙlue) = λ(ʀed) / λ(ʙlue)
λ(ʙlue) is < λ(ʀed)
Therefore, Fringe width with blue light < β with red light.
Fringes become narrower with blue light.
Related Questions: - A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹
- The magnetic moment of a diamagnetic atom is
- Two solid discs of radii r and 2r roll from the top of an inclined plane
- The process of adding impurities to the pure semiconductor is called
- A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz.
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A block of mass 10 kg is moving in X-direction with a constant speed of 10 ms⁻¹
- The magnetic moment of a diamagnetic atom is
- Two solid discs of radii r and 2r roll from the top of an inclined plane
- The process of adding impurities to the pure semiconductor is called
- A car moving with a velocity of 36 km/hr crosses a siren of frequency 500 Hz.
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