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Question

Periscope works on the principle of multiple reflection. It consists of two or more mirror, used for the reflection. If the two mirrors are placed at an angle of 90, how many images of the object are formed between them?


A

One

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B

Two

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C

Three

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D

Four

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Solution

The correct option is C

Three


We use the formua n=(360Θ)1. Which gives (36090)1 = 3
Hence three images are formed.


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