Question

At which angle does the central maximum occur?

Options

• \[a\sin\theta=\lambda\]

• \[\theta=0\]

• \[a\sin\theta=2\lambda\]

• \[a\sin\theta\approx\left(n+\frac{1}{2}\right)\lambda\]

Answer 1

The central maximum occurs along the normal to the slit at point C. Along this direction, \[\theta=0\].