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An object is placed 30cm from a concave mirror of focal length 15cm. the linear...

Physics
JAMB 1979
An object is placed 30cm from a concave mirror of focal length 15cm. the linear magnification of the image produced is
  • A. o
  • B. \(\frac{2}{3}\)
  • C. 1
  • D. 2
  • E. 3
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Correct Answer: Option C
Explanation
U = 30cm = 2f = r

V = 30cm

hence, m = \(\frac{v}{u}\) = \(\frac{30}{30}\)

= 1
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