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.

(c) plane mirror and convex mirror.

(d) convex mirror and plane mirror.

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Solution

Plane mirror produces erect and same size image. Whereas convex mirror produces erect image and image size can be small or large. So, option (c) is the correct answer.

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Similar questions

A real and enlarged image can be obtained by using a :

(a) convex mirror

(b) plane mirror

(d) either convex or plane mirror.

Which of the following can be used to form a real image?

(a) Concave mirror only

(b) Plane mirror only.

(d) Both concave and convex 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.

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

Q. 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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Standard VII Physics

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