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A thick plane mirror shows a number of i...

A thick plane mirror shows a number of images of the filament of an electric bulb. Of these, the brightest image is the

A

First

B

Second

C

Last

D

Fourth

Text Solution

Verified by Experts

The correct Answer is:
B
A thick mirror forms a number of images. Image is formed by front surface which is unpolished and hence reflects only a small part of light, while second image is formed by polished surface which reflects most of intensity. Hence second image is brightest.
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