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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
- The radius of curvature of a convave mirror is 24 cm and the imager is magnified
- A projectile is fired at 30°. Neglecting friction, the change in kinetic energy when
- The near point and far point of a person are 40 cm and 250 cm, respectively.
- The Boolean expression P+ P ̅ Q, where P and Q are the inputs of the logic
- The optical path of a monochromatic light is same if it goes through 4.0 cm
Topics: Wave Optics (101)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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