Ts Eamcet
Ray Optics
TS EAMCET 2022 (Online) 20th July Evening Shift
MCQ+1 / -02022
A convex lens of focal length 25 cm and made of glass with refractive index 1.5 is immersed in water. the absolute change in focal length of the glass is [use refractive index of water $=4 / 3$ ]