Question

(1) Write two points of difference: Convex lens and Concave lens
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Answer 1

Answer:

convex lens

• also called converging lens
• image formed is real,magnified(depends on distance) and inverted(depends on distance)

concave lens

• also called diverging lens
• image formed is virtual,diminished(depends on distance)and erect(depends on distance)

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Answer 2

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CONVEX LENS :

A lens which is thicker at the centre and thinner at its ends us called convex lens

Convex lens is also known as converging lens

It converges a parallel beam of light rays passing through it

CONCAVE LENS :

A lens which is thicker at the ends

and thinner at its centre is called concave lens

Concave lens is also known as diverging lens

It diverges a parallel beam of light rays passing through it