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 ?
2)8cm
3)16 cm
4)20 cm
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16 cm
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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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ashish
119
vineel
101