Question

What is concave lens ? Examples of concave lens

Answer 1

Answer:

Uses of a Concave Lens

A concave lens is used to diverge incident rays. This helps to create a virtual image on the opposite side of the refracting surface. Hence, these lenses are used in binoculars, telescopes, cameras, flashlights and eyeglasses. The images are erect and upright, unlike the real images.

Explanation:

There are many examples of concave lenses in real-life applications.

Binoculars and telescopes.

Eye Glasses to correct nearsightedness.

Cameras.

Flashlights.

Lasers (CD, DVD players for example).

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Answer 2

Answer:

A lens which is thicker at the edges and thin in the centre,i.e., curved inwards is known as concave lens