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MHT CET Physics question

PhysicsRay Optics and Optical InstrumentsMHT CET

An equi-convex lens has radius of curvature R. The refractive index of the material of the lens when numerical value of R and focal length F are same is [MHT-CET 2018]

Answer: (D)

Solution

with gives , so ; 1.75, 2 and 1.25 give . Hence the correct option is (d).

Question ID VK-069539