JEE Main & Advanced
Physics
Ray Optics
Question Bank
Numerical Value Type Questions - Optical Instrument
question_answer
A telescope has an objective lens of focal length 200 cm and an eye piece with focal length 2 cm. If this telescope is used to see a 50 meter tall building at a distance of 2 km, what is the height (in cm) of the image of the building formed by the objective lens.