principal focus Then focal length of lens is 1 9 cm 2 25 cm

Last updated: 6/28/2023

principal focus Then focal length of lens is 1 9 cm 2 25 cm 3 15 cm 4 17 cm GO0063 A glass convex lens 1 5 has a focal length of 8 cm when placed in air What would be the focal length of the lens when it is immersed in water 1 33 1 2 m 2 4 cm 3 16 cm 4 32 cm