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Nakul Ram Kannan
Asked: 2022-11-09T21:11:01+05:30 In:

Following figures shows sources `S_1` and `S_2` that emits light of wavelength `lambda` in all directions. The sources are exactly in phase and are separated by a distance equal to `1.5lambda`. If we start at the indicated start point and travel along path 1 and 2, the interference produce a maxima all along
image
A. (a) Path 1
B. (b) Path 2
C. (c) Any path
D. (d) None of these

Following figures shows sources `S_1` and `S_2` that emits light of wavelength `lambda` in all directions. The sources are exactly in phase and are separated by a distance equal to `1.5lambda`. If we start at the indicated start point and travel along path 1 and 2, the interference produce a maxima all along
image
A. (a) Path 1
B. (b) Path 2
C. (c) Any path
D. (d) None of these
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  1. Correct Answer – A
    At any point along the path 1, path difference between the wave is 0.
    Hence maxima is obtained all along the path 1.
    At any point along the path 2, path difference is `1.5lambda` which is odd multiple of `lambda/2`, so minima is obtained all along the path 2.

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