An Elderly Person's Range of Vision Is Between 70 Cm

question 2

Multiple Choice

An elderly person's range of vision is between 70 cm and 300 cm from the eye.What focal length lens is needed to allow her to read a newspaper clearly at the normal distance of 25 cm from her eyes?

• A)38.9 cm
• B)18.4 cm
• C)27.3cm
• D)23.1 cm
• E)70.0 cm

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