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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 rod lies along the X-axis with one end at the origin and the other at x→∞. It carries
- A uniform force of (3i+j) Nacts on a particle of mass 2 kg.Hence the particle is displaced
- The refracting angle of a prism is A and refractive index of the material of the prism
- The acceleration due to gravity near the surface of a planet of radius R and density d
- Find the fundamental frequency of a closed pipe if the length of air column is 42m.
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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