Vision Problems: The near point of a farsighted person is 100 cm. She places reading glasses very close to her eyes, and with them she can comfortably read a book at a distance of 25 cm. What is the power of the lenses in her reading glasses?
A. +2.5 diopters
B. +3.0 diopters
C. +3.2 diopters
D. -2.0 diopters
Answer: B
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A) 6 million years ago B) 65 million years ago C) 245 million years ago D) 10,000 years ago