Published by:
CGP EDU Academic Team
Published on: August 14, 2026
A concave-convex lens of refractive index 1.5 and the radii of
curvature of its surfaces are 30 cm and 20 cm , respectively. The concave surface is upwards and is filled with a liquid of refractive index 1.3. The focal length of the liquid-glass combination will be.
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
D
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