Two plane mirrors $M_{1}$ and $M_{2}$ are placed parallel to each other $20 c m$ apart. A luminous point object $O$ is placed between them at $5 c m$ from $M_{1}$ as shown.

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The distances (in cm) of three nearest images from mirror $M_{2}$ are $5, 35, 45$ respectively.

The distance (in cm) of three nearest images from mirror $M_{2}$ are $15, 25, 55$ respectively.

The distance (in cm) of three nearest images from mirror $M_{1}$ are $15, 25, 55$ respectively.

The distance (in cm) of three nearest images from mirror $M_{1}$ are $5, 35, 45$ respectively.

answer is A, D.

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Detailed Solution

The first three images for M₁ are 5cm,35cm,45cm.

The first three images for M₂are 15cm,25cm,55cm.

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