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Two slits are made one millimetre apart ...

Two slits are made one millimetre apart and the screen is placed one metre away. What is the fringe separation when bluegreen light of wavelength 500 nm is used?

Text Solution

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Fringe spacing `=(Dlambda)/(d)=(1xx5xx10^(-7))/(1xx10^(-3))m`
`=5xx10^(-4)m=0.5mm`
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