Question

$100\pi$ phase difference $=$ ____ path difference.

• A. $10\lambda$
• B. $25\lambda$
• C. $50\lambda$
• D. $100\lambda$

Answer 1

Answer: (C)

$50\lambda$

Path difference $=\frac{\lambda }{2\pi }\times$ Phase difference
$=\frac{\lambda }{2\pi }\times 100\pi =50\lambda$.