Ap Eapcet
Ray Optics
AP EAPCET 2025 - 24th May Morning Shift
MCQ+1 / -02025
The ratio of the focal lengths of a convex lens when kept in air and when it is immersed in a liquid is $1: 2$. If the refractive index of the material of the lens is 1.5 , then the refractive index of the liquid is