Multiple Choice
A farsighted boy has a near point at 2.3 m and requires contact lenses to correct his vision to the normal near point.What is the correct choice of lens power for the contact lenses?
A) -0.28 diopters
B) +0.28 diopters
C) -3.6 diopters
D) +3.6 diopters
E) +1.8 diopters
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q49: A lens of focal length 90 mm
Q50: A refracting telescope has a magnification M.If
Q51: The focal length of a magnifying glass
Q52: A nearsighted person has a far point
Q53: A lens of focal length 40 mm
Q55: The objective lens and the eyepiece of
Q56: Olga is nearsighted and cannot see things
Q57: A simple compound microscope normally uses<br>A)a short
Q58: A person's eye lens is 2.8 cm
Q59: What is the power of the lens