15 A small object is placed 20 cm in front of a block of

Last updated: 5/31/2023

15 A small object is placed 20 cm in front of a block of glass 10 cm thick and its farther side silvered The image is formed 22 cm behind the silvered face Find the refractive index of glass 1 1 15 3 1 67 2 1 25 4 1 1