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JEE Advanced 2015 Paper 1

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Question : 8

Total: 60

A young's double slit interference arrangement with slit S1andS2 is immersed in water (refractive index=4/3) as shown in the figure.The position of maxima on the surface of water are given by x2=p2m2λ2−d2,where λ is the wave length of light in air (refractive index =1),2d is the separation between the slits and m is an integer.The value of p is ?

3
9
4
6

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