Question

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good evening..!
have a great day​

Answer 1

Answer:

Good evening dear

how are you

Constructive interference at a point between the two waves takes place if the path difference between the waves at that point is equal to integral multiple of wavelength of the waves.

So, path difference Δx=nλ

where n must be an integer

Answer 2

Answer:

very good evening

have a marbles monday...