Question

if an object is placed at a distance of 20 cm in front of a plane mirror what will be the total distance between the object and its image formed in a plane mirror

Answer 1

Given:

An object is placed at a distance of 20 cm in front of a plane mirror.

To find:

The total distance between the object and the image.

Solution:

The distance between the object and the mirror is 20 cm.

We know that,

• The distance between the object and the plane mirror = The distance between the mirror and the image formed.
• In case of a plane mirror, the image forms behind the mirror.

∴ The distance between the object and the formed image is_

(20+20) cm

= 40 cm.

Answer:

              The distance between the image and the object is 40 cm.

Answer 2

Answer:

40 cm

Explanation:

we just have to the double of the distance between the object and the mirror

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