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When a biconvex lens of glass having refractive index 1.47 is dipped in a liquid, it acts a plane sheet of glass. This implies that the liquid must have refractive index
Options
(a) equal to that of glass
(b) less then one
(c) greater than that of glass
(d) less than that of glass
Correct Answer:
equal to that of glass
Explanation:
1/f = (µₕ / µₘ – 1) (1/R₁ – 1/R₂)
If µₕ = µₘ, then
1/f = (1 – 1) (1/R₁ – 1/R₂)
1/f = 0, f = 1 / 0 = ∞
This implies that the liquid must have refractive index equal to glass.
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Topics: Ray Optics
(94)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- At a metro station, a girl walks up a stationary escalator in time t₁
- The concentric spheres of radii R and r have positive charges q₁ and q₂ with equal
- An α-particle moves in a circular path of radius 0.83 cm in the presence of a magnetic
- Two wires of the same dimensions but resistivities p1 and p2 are connected in series
- A train is moving along a straight path with uniform acceleration
Topics: Ray Optics (94)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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