Problem

Problem

Focal length of a concave mirror

M_1

is

-20

cm and focal length of a convex mirror

M_2

is

+20

cm. A point object is placed at a distance

X

in front of

M_1

or

M_2

. Match the following two columns.

Column I	Column II
(a) $X = 20$ , mirror is $M_1$	(p) image is at infinity
(b) $X = 20$ , mirror is $M_2$	(q) image is real
(c) $X = 30$ , mirror is $M_1$	(r) image is virtual
(d) $X = 30$ , mirror is $M_2$	(s) image is magnified

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