1 The dispersive powers of crown and filint glasses are 0 02

Last updated: 6/24/2023

1 The dispersive powers of crown and filint glasses are 0 02 and 0 04 respectively In an achromatic combination of lenses the focal length of flint glass lens is 40 cm The focal length of crown glass lens will be a 20cm c 10cm b 20cm d 10cm