Q. What is the phase difference between two successive crests in the wave?
A) $\pi$
B) $\pi/2$
C) 2$\pi$
D) 4$\pi$
Explanation
(c) Relation of path difference and phase difference is given by
$\mathrm{\Delta}\Phi = \frac{2\pi}{\gamma} \times \mathrm{\Delta}x$
Where$\ \ \mathrm{\Delta}$x is path difference.
But path difference between two crests $\mathrm{\Delta}$x=λ
Hence, $\mathrm{\Delta}\Phi = \frac{2\pi}{\lambda} \times \lambda = 2\pi$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.