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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: - The pair of quantities having same dimensions is
- Eddy currents are used in
- Time period of the rotation of the earth about its own axis is 24 hour
- A small object of uniform density rolls up a curved surface with an initial velocity
- Radius of first orbit of the electron in a hydrogen atom is 0.53 Å. So the radius
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The pair of quantities having same dimensions is
- Eddy currents are used in
- Time period of the rotation of the earth about its own axis is 24 hour
- A small object of uniform density rolls up a curved surface with an initial velocity
- Radius of first orbit of the electron in a hydrogen atom is 0.53 Å. So the radius
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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