science
Grade6
Easy
Question
Which of the given mirrors can be used to light a fire?
- Concave
- Convex
- Plane
- None of the above
Hint:
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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