1.

You have been given four convex lenses of focal length 35 cm, 25 cm, 8 cm and 4 cm. Which two convex lenses will you select for designing acompound microscope for maximum magnifying power and why ?​

Answer»

The obejective of a telescope must have large aperture to gather more light. It should ALSO have large focal LENGTH. Therefore, lensis selected as objective lens.
The eye piece should have small aperture and small focal length. Therefore, lensis selected as eye lens. In normal ADJUSTMENT, Magnifying.
POWER,



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