Question

define concave and convex​

Answer 1

Answer:

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Concave describes shapes that curve inward, like an hourglass. Convex describes shapes that curve outward, like a football (or a rugby ball).

Answer 2

Answer:

concave mirror:- when a spherical mirror is curved inwards it is called as concave mirror…

Example:- spoon is curved inwards in one part.

convex mirror:- when a spherical mirror is curved outward ls it is called as convex mirror…

Example:- spoon is curved outwards in one part.