1.

In Young's double slit experiment, carried out with light of wavelength lambda= 5000 Å the distance between the slits is 0.2 mm and the screen is at 200 cm from the slits. The central maximum is at x = 0. The third maximum (taking the central maximum as zeroth maximum) will be at x equal to ......

Answer»

`1.67 cm`
`1.5 cm`
`0.5 cm`
`5.0 cm`

Solution :`=X(n) LAMBDA(D)/(d)`
`=3xx5000xx10^(-10)xx(2)/(0.2xx10^(-3))`
`=1.5xx10^(-2)m=1.5 cm`


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