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The far point of a myopic person is 80cm in the front of the eye what is the nature and power of the lens required to correct the problem.
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given:
PowerPoint of the defective eye, v=-80cm
object distance, u=-?(infinity)
to find : nature and the power of the corrective lens
solution
1/v-1/'u=1/f
.1/f=1/(-80)-1/(?)
1/lf=-1/80+0......since, 1/-?
1/f=-1/80
f=-80cm
therefore the corrective lens should be of the focal length 80 CM
PowerPoint of the defective eye, v=-80cm
object distance, u=-?(infinity)
to find : nature and the power of the corrective lens
solution
1/v-1/'u=1/f
.1/f=1/(-80)-1/(?)
1/lf=-1/80+0......since, 1/-?
1/f=-1/80
f=-80cm
therefore the corrective lens should be of the focal length 80 CM
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