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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: - In which of the follows decays, the element does not change?
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
- Match the following columns about collision
- The total radiant energy per unit area, normal to the direction of incidence
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- In which of the follows decays, the element does not change?
- Two charged particles have charges and masses in the ratio 2:3 and 1:4 respectively.
- The coefficient of performance of a Carnot refrigerator working between 30⁰C and 0⁰C is
- Match the following columns about collision
- The total radiant energy per unit area, normal to the direction of incidence
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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