Question

In Young's double slit experiment, the minimum amplitude is obtained when the phase difference of super-imposing waves is (when n = 1, 2, 3, ...)

• A. Zero
• B. (2n-1)$\pi$
• C. n$\pi$
• D. (n+1)$\pi$

Answer 1

The correct option is B (2n-1)$\pi$

For minima, phase diff. = odd integral multiple of $\pi =(2n-1)\pi$