Question

An object is placed between two plane parallel mirrors. Why do the distant images get fainter and fainter?

Answer 1

1. When an object is placed between two plane-parallel mirrors, then an infinite number of images are formed.
2. Images are formed due to multiple reflections. At each reflection, a part of light energy is absorbed. Therefore, distant images get fainter.
3. The intensity of the image is decreased after each reflection, so after a few reflections, the images become invisible.

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