Solve the following question:

Asked by nkrbasak | 25th Feb, 2013, 10:56: PM

Expert Answer:

P=4=1/f  in m
f=1/4  m=0.25 m
If the lens is immersed in water completely, then its f will be 4 times....from lens maker's formula putting the value of refractive index of two materials it can be easily found.
 
f in water=1m
P in water will be=+1D

Answered by  | 26th Feb, 2013, 12:37: PM

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