Question
Question: A person wears glasses of power – 2.0 D. The defect of the eye and the far point of the person witho...
A person wears glasses of power – 2.0 D. The defect of the eye and the far point of the person without the glasses will be
A
Nearsighted, 50 cm
B
Farsighted, 50 cm
C
Nearsighted, 250 cm
D
Astigmatism, 50 cm
Answer
Nearsighted, 50 cm
Explanation
Solution
The defect is myopia (nearsightness)
As we know for myopic person f = – (defected far point)
⇒ Defected far point = – f = –
= 50 cm