Two point white dots are 1mm apart on a ...

Two point white dots are 1mm apart on a black paper. They are viewed by eye of pupil diameter 3mm. Approximately, what is the maximum distance at which these dits can be resolved by the eye? [Take wavelelngth of light =500nm]

5 m

1 m

6 m

3 m

Text Solution

Verified by Experts

The correct Answer is:

`y/D lt= 1.22 lambda/d`
D `lt= (yd)/(1.22 lambda)`
D = `(10^(-3)xx3xx10^(03))/(1.22xx5xx10^(-7))`
`30/6.1` = 5m

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