Multiple choice

_______ and ________ are required to see a shadow.

  1. Darkness and a transparent object

  2. Source of light and an opaque object

  3. An opaque object and darkness

  4. A non – luminous object and darkness
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Whenever an opaque object is kept in the path of the light, it forms a dark patch behind itself. This dark patch is known as a shadow. It is always black in colour irrespective of the object colour or light colour falling on it. So, it is an opaque object and a source of light, required to see the shadow.

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