Suppose You Wanted to Start a Fire Using a Mirror

Suppose you wanted to start a fire using a mirror to focus sunlight. Which of the following statements is most accurate?

A) It would be best to use a convex mirror.
B) One cannot start a fire using a mirror, since mirrors form only virtual images.
C) It would be best to use a plane mirror.
D) It would be best to use a concave mirror, with the object to be ignited positioned halfway between the mirror and its center of curvature.
E) It would be best to use a concave mirror, with the object to be ignited positioned at the center of curvature of the mirror.

Correct Answer:

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