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Time taken by light to cross a glass slab of thickness 4 mm and refractive index 3 is
Options
(a) 4×10⁻¹¹ sec
(b) 2×10⁻¹¹ sec
(c) 16×10⁻¹¹ sec
(d) 8×10⁻¹¹ sec
Correct Answer:
4×10⁻¹¹ sec
Explanation:
t = μx / c = (3 × 4 × 10⁻³) / (3 × 10⁸) = 4 x 10⁻¹¹ sec
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Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A string is stretched between fixed points seperated by 75 cm. It is observed
- In an orbital motion, the angular momentum vector is
- A liquid wets a solid completely. The meniscus of the liquid in a sufficiently long
- In Moseley’s law √ν=a(z-b), the values of the screening constant for K-series
- The resistance of an ammeter is 13Ω and its scale is graduated for a current
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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