The Total solution for NCERT class 6-12
Asmall telescope has an objective lens of focal length 144 cm and an eyepiece offocal length 6.0 cm. What is the magnifying power of the telescope? What is theseparation between the objective and the eyepiece?
Focal length of the objective lens, fo = 144 cm
Focal length of the eyepiece, fe = 6.0 cm
The magnifying power ofthe telescope is given as:
The separation between theobjective lens and the eyepiece is calculated as:
Hence,the magnifying power of the telescope is 24 and the separation between theobjective lens and the eyepiece is 150 cm.