1.

In which of the following the image of an object placed at infinity will be highly diminished and point sized ?

Answer»

Concave mirror only
Convex mirror only
Convex LENS only
All types of mirrors and lenses

Solution :When an object is placed at infinity, a parallel beam of light is incident on the mirror/lens. For all types of mirrors and lenses the beam will GET focussed at the principal focus of mirror/lens and a HIGHLY DIMINISHED, POINT size image is formed there.


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