Question

An equconvex lens of refractive index m1 and focal length of f and radius of curvature R is immersed in a liquid of refractive index m2 for m2>m1 and m2<m1 draw a Ray diagram in two cases when a beam of light coming parallel to the principal axis is incident on the lens. Also find the focal length of the lens on terms of the original focal length and the refractive index of the glass of the lens and that of the medium. ​

Answer 1

Answer:

air medium and focal length is 1/4 time of original

Explanation:

concept of light theory