Two coherent sources S1 and S2 of intensity I1 and I2 produce an interference pattern on a screen where the minimum intensity in the central portion is exactly zero. Which of the following statements must be FALSE?

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Physics · Wave Optics

Two coherent sources S1 and S2 of intensity I1 and I2 produce an interference pattern on a screen where the minimum intensity in the central portion is exactly zero. Which of the following statements must be FALSE?

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S1 and S2 must have a phase difference of zero at all times.

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Answer 1

S1 and S2 have the same wavelength.

Answer 2

S1 and S2 must have a phase difference of zero at all times.

Answer 3

S1 and S2 have a constant phase difference.

Answer 4

S1 and S2 have the same intensity.

Two coherent sources S1 and S2 of intensity I1 and I2 produce an interference pattern on a screen where the minimum intensity in the central portion is exactly zero. Which of the following statements must be FALSE?

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Two coherent sources S1 and S2 of intensity I1 and I2 produce an interference pattern on a screen where the minimum intensity in the central portion is exactly zero. Which of the following statements must be FALSE?

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