3 A thin biconvex lens of refractive index is placed on a

Last updated: 6/11/2023

3 A thin biconvex lens of refractive index is placed on a horizontal plane mirror as 2 shown in the figure The space between lens and the mirror is then filled with water of refractive index 46 17 4 It is found that when a point object is placed 15 cm above the lens on the principal axis the object coincides with its own image 1 5 R 1 3 YOLUTU VI TONTO What is value of R from above information A R 10 cm C R 5 cm 2 B R 15 cm D R 20 cm