An image formed by a ______________ (convex, plane) mirror is always of the same size as that of the object.

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Solution

image formed by a plane mirror is at same distance as from the object and also of same size.

Mirror formula, $\frac{1}{u} + \frac{1}{v} = \frac{1}{f}$
$f = i n f i n i t e$
$u = - v$
Magnification, $m = \frac{- v}{u}$
$= 1$

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Image formed by a plane mirror is always of the same size as the object.

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Match the following: [5 MARKS]

Column I	Column II
(a) A plane mirror	(i) Used as a magnifying glass.
(b) A convex mirror	(ii) Can form the image of objects spread over a large area.
(c) A convex lens	(iii) Used by dentists to see an enlarged image of teeth.
(d) A concave mirror	(iv) The image is always inverted and magnified.
(e) A concave lens	(v) The image is erect and of the same size as the object.
	(vi) The image is erect and smaller in size than the object.

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