Question

difference between lens nd mirror

Answer 1

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HERE IS YOUR ANSWER

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The difference between lens and mirror :-

● Mirrors are devices which are based on the principle of reflection whereas lenses are devices which are based on the theory of refraction.

● Material other than glass or clear plastic is required to manufacture mirrors, whereas lenses only require glass or clear plastic.

● A perfect mirror reflects 100% of light incident on it from the silvered surface. A perfect lens refracts 100% incident on it.

● There are only three main types of mirrors, whereas there are six main types of lenses.

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Answer 2

Hey buddy here is your answer !!!

→ LENS :

▶ CONCAVE : Divergent lens
f = -ve
r = -ve
c = -ve
u = -ve
▶CONVEX : Converging lens
f = + ve
r = + ve
u = - ve
c = + ve

→ MIRROR :

▶ CONCAVE :
f = -ve
u = -ve
c = -ve
r = -ve
▶CONVEX :
f = + ve
u = -ve
c = + ve
r = + ve

→ Lenses have two focal points, one on either side of the lens.

→ A concavemirror converges light to a focal point.

→For lenses, light converges to a point for a convex lens.

→ A convex mirror diverges light, as does a concavelens.

→ FORMULAS

▶ LENS

1/v - 1/u = 1/f

m = h'/h = v/u

▶ MIRRIOR

1/v + 1/u = 1/f

m = h'/h = -v/u

Hope u like the way of giving answer !!!