c 2 1 J2 The magnifying power of a telescope is 9 When it is

Last updated: 6/10/2023

c 2 1 J2 The magnifying power of a telescope is 9 When it is adjusted for parallel rays the distance between the objective and eyepiece is 20 cm The focal length of lenses are 2012 a 10 cm 10 cm b c 18 cm 2 cm d 15 cm 5 cm 11 cm 9 cm