Multiple choice

Calculate the position of the image formed if a concave mirror produces a real image which is three times magnified of the object placed 20 cm infront of it.

    • 60 cm
    • 6.66 cm
  1. 60 cm

  2. 6.66 cm

  3. 0.15 cm

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Magnification produced by a spherical mirror is given by the relation,
m = hi/ho = - v/u Height of the object, ho = h

  • 3h/h = - v/u
    Object distance, u = - 20 cm
    v = - 60 cm