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A dichromatic Iight of waveIengths lam...

A dichromatic Iight of waveIengths `lambda_(1) = 250 xx 10^(-9)` m and `lambda_(2) =350 xx 10^(-9)`m are used in Young's doubIe sIit experiment. CaIcuIate the ratio of overIapped fringes due to both the waves in the obtained interference fringes.

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The correct Answer is:
`n_(1) : n_(2) =5:7`
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