Physics
Grade-10
Easy

Question

The height of a real and inverted image of an object of size 14cm is 21cm. The ratio of the negative of the image distance and the object distance is ____.

  1. 3/2
  2. -3/2
  3. 2/3
  4. -2/3

hintHint:

-3/2

The correct answer is: -3/2


    For a real and inverted image, the height of the image is negative and the height of the object is positive. So the magnification of the mirror is negative.
    m= height of image/height of object

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