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An object is placed 30cm from a concave mirror of focal length 20cm. Calculate.

  1. The Image Position
  2. The Magnification

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  1. 1/f=1/v + 1/u,
    1/v=1/f − 1/u,
    u=+30cm, f=+20cm, v=+60cm.
  2. m=v/u,
    m=60/30=2
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