Ray Optics

JEE Main level, numerical answer, medium

8 of 295

Question 8 of 295

Two vertical parallel mirrors AA and BB are separated by 1010 cm. AA point object OO is placed at a distance of 2cm2cm from mirror A.A. The distance of the second nearest image behind mirror AA from the mirror AA is _______cm.

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Answer: 18


As can be seen from the image above, object distance is 8cm8cm [For image by BB]
In a plane mirror the image distance is equal to the object distance. Thus, the required distance is
8+8+2cm=18cm8+8+2cm=18cm

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