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In Young’s double slit experiment the distance between the slits and the screen is doubled. The separation between the slits is reduces to half. As a result the fringe width
Options
(a) is doubled
(b) is halved
(c) becomes four times
(d) remains unchanged
Correct Answer:
becomes four times
Explanation:
Fringe width β = Dλ/d;
From qn D’ = 2D and d’ = d/2
β’ = λD¹ / d¹ = 4β
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Topics: Ray Optics
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Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- An object is placed 30 cm away from a convex lens of focal length 10 cm and a sharp
- The wavelength of first line of Balmer series is 6563Å. The wavelength of first line
- If the dimensions of a physical quantity are givenby Mᵃ Lᵇ Tᶜ, then the physical
- The photoelectric threshold frequency of a metal is ν. When light of frequency 4ν
- Element ²³⁴U has 92 protons and 234 nucleons in its nucleus. It decays by
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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