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Calculating the Total Number of Images

Two plane mir...

Question

Two plane mirrors are set at right angles to each other. A coin is placed in-between these two plane mirrors. How many images of the coin will be seen?

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Solution

Let, the angle is x

Number of images = $\frac{360}{x} - 1$

= $\frac{360}{90} - 1$

= $4 - 1$

= $3$

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