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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
Related Questions: - The electric field in a certain region is acting radially outward and is given by E=Ar.
- The dimensions of mobility of charge carriers are
- A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
- A uniform chain of length L and mass m is kept on a smooth table. It is released
- Which two of the following five physical parameters have the same dimensions?
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The electric field in a certain region is acting radially outward and is given by E=Ar.
- The dimensions of mobility of charge carriers are
- A planar coil having 12 turns carries 15 A current. The coil is oriented with respect
- A uniform chain of length L and mass m is kept on a smooth table. It is released
- Which two of the following five physical parameters have the same dimensions?
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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