science
Grade6
Easy

Question

Which of the given mirrors can be used to light a fire?

  1. Concave 
  2. Convex
  3. Plane
  4. None of the above

hintHint:

Concave mirror converges light.

The correct answer is: Concave


    • A concave mirror converges all the light rays coming parallel to principal axis at its focus.
    • When paper is kept at the focus of the mirror, it starts burning due to rise in temperature at that point.
    • So, the correct option is a.

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