Question

In a compound microscope, the objective lens is a:

* concave lens of very small focal length
* convex lens of very small focal length
* concave lens of large focal length
* convex lens of large focal length​

Answer 1

Answer:

Compound microscope is made up of two convex lenses. The convex lens that is close to the object is known as objective lens and the lens placed near to the eye is known as eye piece. Objective lens has small focal length and small aperture because for small focal length it is necessary to have small aperture.

Answer 2

Answer:

convex lens of very small focal length