1.

a person suffering from short sighted Ness can see clearly only upon a distance of 2m. find the nature & power of the lens required to correct his vision

Answer»

Here, u = - infinity, v = - 2m (or -200cm)

1/f = 1/v - 1/u

1/f = -1/2 + 1/infinity

therefore, f=-2m

P = 1/f = -1/2 = - 0.5 D

hence power of lens req is - 0.5 D



Discussion

No Comment Found

Related InterviewSolutions