First slide

The optical instruments

Question

The objective of a compound microscope is essentially

Moderate

A

A concave lens of small focal length and small aperture
B

Convex lens of small focal length and large aperture
C

Convex lens of large focal length and large aperture
D

Convex lens of small focal length and small aperture

Solution

The objective of a compound microscope should have small focal length and small aperture.
The eyepiece of a compound microscope should have large focal length and large aperture.

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