Practicing Success

Target Exam

CUET

Subject

Physics

Chapter

Wave Optics

Question:

Options:

a

b

c

d

Correct Answer:

b

Explanation:
A and B are vibrating in phase. Hence, all the wave fronts shown in the diagram are in the same phase. At P, there are wave fronts of both A and B. Hence, the waves of A and B are at same phase at P. Hence, constructive interference occurs at P.