Question

what is concave and convex lens ? what are its uses?​

Answer 1

A concave lens has at least one surface which is curved inwards, relative to the plane of the surface. The middle part of a concave lens is a lot thinner than the edges of the lens. When light rays fall, on a concave lens, the light rays bend outwards and diverge away from each other.

Answer 2

HI FRIENDS YOUR ANSWER IS:

CONCAVE LENS:

DEFINITION:
A lens which is thinner at middle and thicker at edges. It is also called converging lens

IMAGE FORMATION:
=>Erect
=>Virtual
=>Smaller in size than the object (Dimnished image)

USES :
=> Used by dentists
=> Used as magnifying glass

CONVEX LENS:

DEFINITION:
A lens which is thicker at the middle and thinner at the edges . It is also called diverging lens

IMAGE FORMATION:
=>Both real and virtual
=>Both erect and inverted
=>Both magnified and dimnished

USES:
=> Used as side view mirrors in vehicles

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