Question:

Consider microwaves which are incident perpendicular to a metal plate which has a 1.6-cm slit in it. Discuss the angles at which there are diffraction minima for wavelengths of

- 0.50 cm,
- 1.0 cm, and
- 3.0 cm.

Source: Giancoli, Douglas C., Physics: Principles with Applications, 7th Edition, 2014.

Quick Answer:

- $\theta_1 = 18^\circ$ $\theta_2 = 39^\circ$ $\theta_3 = 70^\circ$
- $\theta_1 = 39^\circ$
- no solution