Suppose You Wanted to Start a Fire Using a Mirror

Multiple Choice

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