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JEE Main 2024 Physics question

PhysicsRay Optics and Optical InstrumentsJEE Main 2024

Light from a point source in air falls on a convex curved surface of radius 20 cm and refractive index 1.5. If source is located at 100 cm from the convex surface, the image will be formed at cm from the object.

Answer: 200

Solution

Refraction at the spherical surface: 1.5/v − 1/(−100) = (1.5 − 1)/20, so 1.5/v = 1/40 − 1/100 = 3/200 and v =

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Question ID VK-017224