Two big mirrors A and B are fitted side by side on a wall. A man is standing at such a distance from the wall that he can see the erect image of his face in both the mirrors. When the man starts walking towards the mirrors, he finds that the size of his face in mirror A goes on increasing but that in mirror B remains the same.

(a) mirror A is concave and mirror B is convex
(b) mirror A is plane and mirror B is concave
(c) mirror A is concave and mirror B is plane
(d) mirror A is convex and mirror B is concave

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Solution

(c) mirror A is concave and mirror B is plane

Image formed by a plane mirror is virtual, erect and of the same size as the object.
Image formed by a concave mirror is virtual,erect and larger than the object.

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Similar questions

Q. A boy is standing in front oftwo big mirrors

P

and

Q

fitted side by side on a wall. He can see the erect image of his face in both the mirrors, the size of his face in mirror

P

remains the same but it goes on increasing in mirror

Q

. which one of the following is correct?

Question 1

Boojho and Paheli were given one mirror each by their teacher. Boojho found his image to be erect and of the same size whereas Paheli found her image erect and smaller in size. This means that the mirrors of Boojho and Paheli are, respectively

(a) plane mirror and concave mirror.

(b) concave mirror and convex mirror.

(d) convex mirror and plane mirror.

The mirror which can form a magnified image of an object is : (a) convex mirror (b) plane mirror (c) concave mirror (d) both convex and concave mirrors

Question 6

An erect and enlarged image can be formed by

(a) only a convex mirror.

(b) only a concave mirror.

(d) both convex and concave mirrors.

Q. A boy

2 m

tall stands at a distance

40 cm

in front of a mirror. He sees an erect image

1 m

high. The nature of mirror is

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(c) mirror A is concave and mirror B is plane Image formed by a plane mirror is virtual, erect and of the same size as the object. Image formed by a concave mirror is virtual,erect and larger than the object.

(c) mirror A is concave and mirror B is plane

Image formed by a plane mirror is virtual, erect and of the same size as the object.
Image formed by a concave mirror is virtual,erect and larger than the object.