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Moving Object, Stationary Lens

Two mirrors a...

Question

Two mirrors are placed at right angles to each other as shown in the figure. Total number of images of an object O placed between them, that are seen are:

A

Two

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B

Three

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C

Four

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D

Six

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Solution

The correct option is B Three
$θ = 90^{o}$
$n = \frac{360}{θ} = \frac{360}{90} = 4 (e v e n)$
Number of images $= n - 1$
$= 4 - 1 = 3$

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