Question

used of concave and convex ​

Answer 1

Answer:

Hence, these lenses are used in binoculars, telescopes, cameras, flashlights and eyeglasses. The images are erect and upright, unlike the real images. This is how you can distinguish between concave and convex lens by learning the features of light rays refracting inside the lenses.

Answer 2

Concave mirror is used by dentist, solar furnace, reflector of a torch, etc. Convex mirror is used in rear view mirrors.

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