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Question: Two plane mirrors A and B are placed at a distance 12 cm apart facing towards each other. An object is placed in between them at a distance 8 cm from the mirror A. What will be the distance between the first two images formed in the mirror B ?
1)4 cm
3)16 cm
4)20 cm

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Exam Exam: Light QUESTIONS

Distance between First Image formed in B from B (Im1) = 4 cm
Distance between First Image formed in A from B = 12 + 8 = 20 cm
So distance between second Image formed in B due to First Image in A, from B (Im2)= 20 cm
So (Im2 - Im1) = 20 -4 = 16 cm

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