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Image Formation by a Point Object

Two plane mir...

Question

Two plane mirrors are inclined at $90^{o}$ . An object is placed between them whose coordinates are (a, b). Find the position vectors of all the images formed. (Take $^i,^j$ the unit vectors along x and y axes respectively)

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Solution

The formula to find the number of images (n) formed between two plane mirrors inclined at angle $θ$
Number of images formed $= \frac{360^{o}}{θ} - 1$
For $90^{\circ}$ $3$ images are formed.

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