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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: - A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- Which of the following statements is correct?
- A thermoelectric refrigerator works on
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
- The electric potential at the surface of an atomic nucleus (z=50) of radius
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A ray enters a glass sphere of refractive index μ=√3 at an angle of incidence of 60⁰
- Which of the following statements is correct?
- A thermoelectric refrigerator works on
- A concave mirror of focal length f₁ is placed at a distance d from a convex lens
- The electric potential at the surface of an atomic nucleus (z=50) of radius
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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