A person can read the newspaper when it is held at 60 cm from his eyes.What should the focal length of his contact lenses be to allow him to read the newspaper comfortably at a distance of 30 cm?
A) -30 cm
B) 30 cm
C) -60 cm
D) 60 cm
E) 90 cm

Question

Quizplus · Accepted Answer

The Answer of A person can read the newspaper when it is held at 60 cm from his eyes.What should the focal length of his contact lenses be to allow him to read the newspaper comfortably at a distance of 30 cm?
A) -30 cm
B) 30 cm
C) -60 cm
D) 60 cm
E) 90 cm

A Person Can Read the Newspaper When It Is Held