Optics Question 459

Question: In the Young’s double slit experiment, if the phase difference between the two waves interfering at a point is ϕ , the intensity at that point can be expressed by the expression

Options:

A) I=A2+B2cos2φ

B) I=ABcosφ

C) I=A+Bcosφ2

D) I=A+Bcos

Show Answer

Answer:

Correct Answer: D

Solution:

[d] I=a12+a22+2a1a2cosφ

Put a12+a22=A and a1a2=B

I=A+Bcosφ



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