Test SeriesFree PYQsExamsPricing

JEE Main 2019 Physics question

PhysicsRay Optics and Optical InstrumentsJEE Main 2019

A plano-convex lens (focal length , refractive index , radius of curvature R) fits exactly into a plano-concave lens (focal length , refractive index , radius of curvature R). Their plane surfaces are parallel to each other. Then, the focal length of the combination will be:

Answer: (C)

Solution

.

Question ID VK-010205