Constructive interference of two coherent waves will occur if the path difference is
A) 1/4 $\lambda$.
B) 6/4 $\lambda$.
C) 6/2 $\lambda$.
D) 3/4 $\lambda$.
E) 3/2 $\lambda$.

Question

Quizplus · Accepted Answer

Constructive interference occurs when the path difference is an integer multiple of the wavelength, i.e., $ n\lambda $ where $ n $ is an integer. 6/2 $\lambda$ simplifies to 3$\lambda$, which is an integer multiple of $\lambda$.

Constructive Interference of Two Coherent Waves Will Occur If the Path