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Which of the following equations describes the condition for observing the fourth bright fringe in Young's double-slit interference pattern? Assume n = 0 for the central bright fringe.

d sinθ = λ

d sinθ = 3λ/2

d sinθ = 3λ

d sinθ = 4λ

  • Physics -

    d•sinθ=2k•λ/2=k λ
    d sinθ = 4λ

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