1.

Two point white dots are 1 mm apart on a black paper. They are viewed by eye of pupil diameter 3 mm approximately. The maximumdistance at which these dots can be resolved by the eye is, (take wavelength of light, lamda = 500 nm)

Answer»

1 m
5 m
3 m
6 m

Solution :Resolution limit ` SIN THETA = (Y)/(d) = (1.22 lambda)/(d)`
`D=(Yd)/(1.22lambda)=(1xx10^(-3)xx3xx10^(-3))/(1.22xx500xx10^(-9))=5M`


Discussion

No Comment Found

Related InterviewSolutions