A small telescope has an objective lens of focal length `150 cm` and and eye piece of focal length `
Channel: Doubtnut
Date: 2020-08-02

A small telescope has an objective lens of focal length `150 cm` and and eye piece of focal length `5 cm`. If his telescope is used to view a `100 m` high tower `3 km` away, find the height of the final image when it is formed `25 cm` away from the eye piece.