A little known fact is that both Robinson Crusoe and Friday wore eyeglasses.As it so happens,Robinson Crusoe was farsighted while Friday was nearsighted.Whose eyeglasses did they use whenever they wanted to start a fire by focusing the sun's rays?
A)Robinson Crusoe's
B)Friday's
C)Both would work equally well.
D)Both actually worked,but Friday's was a little bit better.
E)Neither's worked,but fortunately they were in possession of matches.

Question

Quizplus · Accepted Answer

To start a fire by focusing the sun's rays, one would need a convex lens, which bends the rays toward a single point. Farsightedness is corrected with convex lenses, which means Robinson Crusoe's glasses would be suitable for this purpose.

A Little Known Fact Is That Both Robinson Crusoe and Friday