1.

A plano-convex lens (focal length f_2, refractive indexmu_(2), radius of curvature R) fits exactly into a plano-concave lens (focal lengthf_(1) refractive index mu_1, radius of curvature R). Their plane surfaces are parallel to each other. Then, the focal length of the combination will be :

Answer»

`f_(1)-f_(2)`
`(R)/(mu_(2)-mu_(1)`
`(2f_1f_(2))/(f_(1)-f_(2)`
`f_(1)+f_(2)`

SOLUTION :NA


Discussion

No Comment Found

Related InterviewSolutions