Question

The angular position of the first minimum of diffraction pattern is

• A. $\frac{\lambda }{2a}$
• B. $\frac{a}{\lambda }$
• C. $\frac{\lambda }{a}$
• D. $\frac{2\lambda }{a}$

Answer 1

Answer: (C)

Correct answer is (c) $\frac{\lambda }{a}$