| ⇦ | 
| ⇨ |
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 dimensions of magnetic field intensity B are
- Across a metallic conductor of non-uniform cross-section, a constant potential
- ₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- The ratio of volumes of nuclei (assumed to be in spherical shape) with respective
Topics: Wave Optics
(101)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- The dimensions of magnetic field intensity B are
- Across a metallic conductor of non-uniform cross-section, a constant potential
- ₉₂U²³⁴ has 92 protons and 238 nucleons. It decays by emitting an alpha particle
- A wheel of mass 10 kg has a moment of inertia of 10 kgm² about its own axis
- The ratio of volumes of nuclei (assumed to be in spherical shape) with respective
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
18000+ students are using NEETLab to improve their score. What about you?
Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.
Share this page with your friends
Leave a Reply