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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 body with mass 5 kg is acted upon a force F=(-3i+4j) N.If its initial velocity at
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- A comb run through one’s dry hair attracts small bits of paper. This is due to
- A solenoid has length 0.4 cm, radius 1 cm and 400 turns of wire. If a current
- Which of the following is true for elastic potential energy density?
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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