Optical Instruments (Microscope, Telescope): JEE Questions & Solutions
5 previous-year JEE Physics questions on Optical Instruments (Microscope, Telescope), each with a worked step-by-step solution.
Previous-year questions
- 01
In a microscope, the objective has a focal length fo = 2 cm and the eye-piece has a focal length fe = 4 cm. The tube length is 32 cm. The…
NVAMediumJEE 2026 - 02
A collimated beam of light of diameter 2 mm is propagating along the x-axis. The beam is required to be expanded into a collimated beam of…
NVAEasyJEE 2026 - 03
In a microscope of tube length 10 cm two convex lenses are arranged with focal lengths 2 cm and 5 cm. Total magnification obtained with…
MCQEasyJEE 2026 - 04
A scientist is observing bacteria through a compound microscope. For better analysis and to improve its resolving power, he should:
MCQEasyJEE 2023 - 05
In a reflecting telescope, a secondary mirror is used to: Options:
MCQEasyJEE 2023
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