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(114 cm12020.13.The focal length of a concave mirror is 12 cmWhere should an object of length 4 cm be placedso that a real image of 1 cm length is formed ?SANO OPTICAL INSTRUMENTOZ-EXERCISE FOS(1) 48 cm(2) 3 cm(B) 60 cm(4) 15 cm 3

Answer»

60cm is the correct answer

60 cm is the right answer.

3 is the correct answer 12×4 =60



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