A man stands symmetrically between two large plane mirrors fixed to two adjacent walls of a rectangular room. The number of images formed are:

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Solution

The correct option is B 3
$∴$ Total number of images=3
$[M_{1},$ $M_{2}$ and $(M_{3}$ or $M_{4})]$
$∵ M_{3} & M_{4}$ coincides. It should be coincided as same.
$M_{1} ⟶$ image obtained from taking $M$ as object on $L_{1}$ .
$M_{2} ⟶$ image obtained from taking $M$ as object on $L_{2}$ .
$M_{3} ⟶$ image obtained from taking $M_{1}$ as object on $L_{2}$ .
$M_{4} ⟶$ image obtained from taking $M_{2}$ as object on $L_{1}$ .

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