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JEE Mains 03-Sep-2020 Shift 2 Solved Paper

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Question : 11

Total: 75

Two light waves having the same wavelength λ in vacuum are in phase initially. Then the first wave travels a path L1 through a medium of refractive index n1 while the second wave travels a path of length L2 through a medium of refractive index n2 . After this the phase difference between the two waves is:

2π
λ
(n1L1−n2L2)
2π
λ
(
L2
n1
−
L1
n2
)
2π
λ
(
L1
n1
−
L2
n2
)
2π
λ
(n2L1−n1L2)

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