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A beam of light consisting of two wavelengths 6500A^(0)" and "5200A^(0) is used to obtain interference fringes in a Young.s double slit experiment. Find the distance of the third bright fringe on the screen fromthe central maximum for wavelenght 6500A^(0). |
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Answer» Solution :The distance of the NTH BRIGHT fringe from the central maximum `y_(m)= (m LAMBDA L)/(d), y_(3)= (3lambda L)/(d)= (3XX(6500xx 10^(-10))xx1.20)/(2xx 10^(-3))= 1.17mm` |
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