1.

A person using -5D lens can see clearly upto 500cm.at what distance he can see without using spect

Answer» LD USE CONCAVE LENS. P = 100/f(in cm)   = 100/50   = 2 D1/f = 1/v - 1/u1/f = -1/50 - (-1/25)1/f = -1/50 + (1/25)1/f = (-1 +2)/501/f = 1/50f = 50cm or 0.5mI hope it will HELP you


Discussion

No Comment Found

Related InterviewSolutions