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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 radius of curvature of the convex face of a plano-convex lens is 12 cm
- Which one of the following statements is not correct in case of a semiconductor?
- An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
- A thin circular ring of mass M and radius R is rotating in a horizontal plane about
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The radius of curvature of the convex face of a plano-convex lens is 12 cm
- Which one of the following statements is not correct in case of a semiconductor?
- An iron rod of volume 10⁻⁴ m³ and relative permeability 1000 is placed inside a long
- Two tangent galvanometers A and B have coils of radii 8 cm and 16 cm respectively
- A thin circular ring of mass M and radius R is rotating in a horizontal plane about
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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