Question

An object is situated at a distance of 18cm from a plane mirror. What is the distance between the object and its image formed by the mirror?

Answer 1

Given:

An object is situated at a distance of 18cm from a plane mirror.

To find:

Distance between the object and its image formed by the mirror.

Solution:

1) The image formed by the plane mirror is always at double the distance between the mirror and the object or the mirror and the image.

2) The plane mirror is the straight glass in which the virtual erect and of the same size image is formed.

3) If the distance between an object and mirror is 18cm

then the distance between an object and image is given by:

• 2×18

• 36cm

The distance between the object and its image formed by the mirror is 36cm.

Answer 2

Answer:

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