What should be wavelength of light to get 5^(th) bright fringe at a point where 3rd bright fringe is obtained using wavelength 700 nm in Young's experiment?

What should be wavelength of light to get 5^(th) bright fringe at a po

1.	What should be wavelength of light to get 5^(th) bright fringe at a point where 3rd bright fringe is obtained using wavelength 700 nm in Young's experiment?
Answer» 420 nm 500 nm 750 nm 630 nm Solution :`n_(1) lambda_(1)= n_(2) lambda_(2)` `:. Lambda_(2)=lambda_(1)XX(n_(1))/(n_(2))` `=700xx(3)/(5)=140xx3=420` nm

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What should be wavelength of light to get 5^(th) bright fringe at a point where 3rd bright fringe is obtained using wavelength 700 nm in Young's experiment?

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