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Which point on the wave diagram below are 90° out of phase with each other?

Which point on the wave diagram below are 90° out of phase with each other?-example-1
User Hcarver
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1 Answer

5 votes

Answer:

4. D and E

Step-by-step explanation:

As we know that the relation between phase difference and path difference is given below


\delta \phi = (2\pi)/(\lambda) \delta x

now we have to find the distance of two points which are out of phase by 90 degree

so here we will have


(\pi)/(2) = (2\pi)/(\lambda) \delta x

so from above we have


\delta x = (\lambda)/(4)

so the distance between the points will be 1/4 times of wavelength

so here correct answer is

4. D and E

User Takenia
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