M Phys quiz seemran. X D Microsoft Word eq x C Physics question I Ch X CIChegg.c

Question

M Phys quiz seemran. X D Microsoft Word eq x C Physics question I Ch X CIChegg.com x An Element Has A Ha X Blackboard Learn x D Class-Review.pdf x G phase shift path lens x C https:// oned.ucsd.edu/bbcswebdav pid-801969-dt-conten d-12365860 1/cou SP16 Coil/Class-Review.pdf Clicker Question CR-5 You have coherent light sources Centerline with the same frequency and amplitude. When then they are in phase you get the following pattern on a nearby screen as shown to the right. How would the pattern look if they were out of phase by TT/2? B) Centerline A Centerline C) Centerline 1:29 PM 6/8/2016

Explanation / Answer

Correct option is C.

I = Io*cos^2 (A/2)

A = difference between two phaes = pi/2

I = Io*(1/2)

since, cos ((pi/2)/2) = 1/sqrt (2)

So pattern will change by (d/2)

Correct option will be C.

In other cases:

If phase difference was pi then answer will be B.

If phase difference was 2*pi then answer will be A.

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