Question

Two plane mirrors X and Y are kept facing each other, the distance between them being 20 cm. An object is kept at a distance of 6 cm from mirror X. What is the distance between the first images formed on mirror X and mirror Y .

Answer 1

x-----o--------------y

Mirror X is 5

Mirror Y is 14

Explanation:

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Answer 2

Answer:

The distance of the first image from the mirror Y is 14 cms and distance of first image formed from mirror X is 6 cms.

Explanation:

• Two plane mirrors are given. Given that the distance between them is 20 cms.
• An object is kept at a distance 6 cms. from the mirror X.
• Then, clearly the object will be at (20-6)cms. = 14 cms. from mirror Y.
• Therefore, clearly, the first images formed by the object on mirror X is 6 cms.
• Also, the first images formed by the object on mirror Y is 14 cms.

Hence, The distance of the first image from the mirror Y is 14 cms and distance of first image formed from mirror X is 6 cms.