Two in-phase sources of waves are separated by a distance of 4.00 m.These sources produce identical waves that have a wavelength of 5.00 m.On the line between them, there are two places at which the same type ofinterference occurs. (a) Is it constructive or destructive interference, and(b) where are the places located?

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Q: Please help

A: Step 1: Step 2: Step 3: don't forget to upvote :) thank you and comment if doubt exists Step 4:

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Interference of Light

The word "constructive" signifies addition in interference. Constructive interference occurs when the path of the waves that start from the slit differs by 1 entire wavelength or in the intervals of the same. Hence, the waves that are presented on the screen are in phase (crest to crest/trough to trough). The waves interfering constructively forms bright fringes on the screen.