Multiple choice

Which one of the following is a feature of shadow?

  1. a shadow is of same colour of that of object

  2. a shadow is formed by an opaque object

  3. a shadow is of same size of that of object

  4. a shadow is formed due to reflection of light
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Shadow is always formed by an opaque object. Shape of the shadow depends upon 2 factors:

  1.         size of source of light
  2.         position of source of light. Smaller the size of light source, larger will be the image, formed and greater is the distance between the object and light source, light will be the image formed. A shadow is always black is colour and is different in size than that of the object.

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