Question

The condition for obtaining secondary maxima in the diffraction pattern due to single slit is :

• A. $a\sin \theta =\frac{n\lambda }{2}$
• B. $a\sin \theta =(2n-1)\lambda /2$
• C. $a\sin \theta =n\lambda$
• D. $a\sin \theta =(2n-1)\lambda$

Answer 1

The correct option is B $a\sin \theta =(2n-1)\lambda /2$

$a\sin \theta =(2n-1)\lambda /2$ is the condition for obtaining secondary maxima in the diffraction pattern due to single slit.