CBSE Class 10 Answered
The far point of a myophic person is 40cm find the focal length and power of lence required for person
Asked by Ak9639315541 | 19 Feb, 2018, 03:03: PM
Expert Answer
If far point of myopic eye is 40 cm, to correct this defect we need a concave lens of focal length 40 cm.
power = -100/40 = -2.5 D
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