When are the two particles said to be in same phase?

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Question:
When are the two particles said to be in same phase?

1. if the phase difference between them is an even multiple of π

2.if the path difference is an even multiple of (λ / 2)

3.if the time interval is an even multiple of (T/ 2)

4.All of the above

Posted Date:-2021-02-21 13:25:17

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