Two waves shown below with the same amplitude, A, and wavelength, lambda, and tr

Question

Two waves shown below with the same amplitude, A, and wavelength, lambda, and traveling in the same direction. Initially the sources (dot at the origin) are also at the same point. The source of the second wave is then displaced by a distance Sx.

***See Picture Below for the rest***

(b) Is this wavelength in the visible range? 3. Two waves shown below with the same amplitude, A, and wavelength, M, and traveling in the same direction. Initially the sources (dot at the origin) are also at the same point. The source of the second wave is then displaced by a distance ox. a) For what values of ox will the superposition of the waves show total constructive two interference? Give at least two values in terms of b) For what values of Ox will the superposition of the two waves show total destructive interference? Give at least two values in terms of amplitude distance 4 I WAVE OPTICS: INTERFERENCE AND DIFFRACTION 26

Explanation / Answer

a)
for constructive interfernce, path difference should be n*

so, 2 values are:
and 2*

b)
for desctructive interfernce, path difference should be (n-1/2)*

so, 2 values are:
/2 and 3*/2

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