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JEE Main20238 Apr 2023Morning ShiftPhysicsRay OpticsActual

Two vertical parallel mirrors A and B are separated by 10 cm. A point object O is placed at a distance of 2   cm from mirror A . The distance of the second nearest image behind mirror A from the mirror A is _ _ _ _ _ _ _   cm .

Correct answer

18

Step-by-step solution

As can be seen from the image above, object distance is 8   cm [For image by B ] In a plane mirror the image distance is equal to the object distance. Thus, the required distance is 8 + 8 + 2   cm = 18   cm

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