In a Young's experiment,the paths from the slits to a point on the screen differ in length causing constructive interference at the point.Which of the following path differences would cause this constructive interference?
A)5λ/2
B)3λ/4
C)4λ
D)None of the above.

Question

Quizplus · Accepted Answer

Constructive interference occurs when the path difference between the two waves is an integer multiple of the wavelength (nλ). Therefore, path difference of 4λ would result in constructive interference. Choices A and B do not equal an integer multiple of the wavelength, and so they do not result in constructive interference. Choice D is not valid as it states none of the options are correct, which is incorrect.

In a Young's Experiment,the Paths from the Slits to a Point