Assertion :Only coherent light sources produce sustained interference. Reason: Coherent light sources emit lights of same wavelength and with a constant phase difference.
A
Statement I is True and Statement 2 is True and is correct explanation of Statement 1.
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B
Statement I is True and Statement 2 is True but not the correct explanation of Statement 1.
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C
Statement I is False and Statement 2 is False
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D
Statement I is True and Statement 2 is False
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Solution
The correct option is A Statement I is True and Statement 2 is True and is correct explanation of Statement 1. The condition for interference is the sources should be coherent sources
Coherent sources have same wavelength and they should always have same phase difference.
so the second statement is a reason for first statement