Question
A farsighted person has a near point located 0.80 m from their eyes. The refractive power...
A farsighted person has a near point located 0.80 m from their eyes. The refractive power of the corrective lenses is approximately:
-2.75 D
2.75 D
0.36 D
-0.36 D
Answers
les un from the eye. Mow, the spectile (lens) must produce the image Let, the lens in leus is held let, the object be 25 un from eye l Reading distance normally). 0080 m from the eye. a di long - Oois) cm =-0.785 m [di di = 78.5 un do tocm - 23.5 un = -8,235 m 44 12 I di do+ M-1 || 6-23S 0185 내 t098 D 기 P S0 Answer +207S D
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