Question

14) A biconvex lens is used in a simple microscope when the object is placed
a) Within focal Length
b) between Fand 2F
c) at F
d) at infinity.​

Answer 1

Answer:

A simple microscope uses the property of a convex lens to produce virtual, erect and enlarged images when an object is placed within the focal length of the lens. So, it is important that the object and the convex lens are very close to each other.

Explanation:

For a human eye, the least distance of distinct vision (D) is 25cm. A simple microscope uses the property of a convex lens to produce virtual, erect and enlarged images when an object is placed within the focal length of the lens. So, it is important that the object and the convex lens are very close to each other.

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