In order to produce an image with magnification 'm' , a concave mirror of focal length 'f' is used. If the object is kept at a distance 'd' from the mirror, then (m-1)f equals
A) md
B) m/(d+1)
C) m/d
D) 1/(md)
A) md
B) m/(d+1)
C) m/d
D) 1/(md)
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b .is right answer
Answer:
B is your correct answer beb......