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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: - Dimensions [ML⁻¹T⁻¹] are related with
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- A particle of unit mass undergoes one-dimensional motion such that its velocity varies
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Topics: Wave Optics
(101)
Subject: Physics
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Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Dimensions [ML⁻¹T⁻¹] are related with
- When an α-particle of mass m moving with velocity ν bombards on a heavy nucleus
- A particle of unit mass undergoes one-dimensional motion such that its velocity varies
- 4 point charges each +q is placed on the circumference of a circle
- A photocell employs photoelectric effect to convert
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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