When two plane mirrors are facing each other, such that an object is placed in between them, then the number of images formed in each mirror will be:

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2

20

10

infinite

answer is D.

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Detailed Solution

Tthe number of images formed in each mirror will be infinite.
The number of images (N) can be calculated by using the following formula:

N = \frac{(360)}{x} - 1 - - - (1)

where

x

is the angle of inclination.
In this case, the two plane mirrors are facing each other, which means that the mirrors are parallel to each other. When an object is kept between the parallel mirrors, an infinite number of images is formed by one mirror, and the image formed acts as the object for the second mirror.

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