What is a concave lens?

1.	What is a concave lens?
Answer» A lens having both spherical surfaces curved inwards is called a concave lens or double concave lens or biconcave lens. It is thicker at the edges than in the middle. [Note: A concave lens is also called a diverging lens.]

Answer»

A lens having both spherical surfaces curved inwards is called a concave lens or double concave lens or biconcave lens. It is thicker at the edges than in the middle.

[Note: A concave lens is also called a diverging lens.]

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What is a concave lens?

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