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polet [3.4K]
3 years ago
12

Two coherent sources of radio waves, A and B, are 5.00 metersapart. Each source emits waves with wavelength 6.00 meters.Consider

points along the line connecting the two sources.
a) At what distance from source A is there constructiveinterference between points A and B?
b) At what distances from source A is there destructiveinterference between points A and B?
Physics
1 answer:
alexgriva [62]3 years ago
3 0

Answer

given,

distance between A and B is equal to 5 m

let x be the distance of loud speaker from the source A

For constructive interference, path difference = mλ

x - (5 - x ) = 0           , for m = 0

2 x - 5 = 0

2 x = 5

  x = 2.5 cm

For destructive interference

|x - (5 - x )| = (2 m + 1)\dfrac{\lambda}{2}

m = 0

|2x - 5| = \dfrac{\lambda}{2}

|2x - 5| = \dfrac{6}{2}

\pm(2x - 5) = 3

x = 4 , 1 cm

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