Physics

Problem

A microwave of wavelength

2.0 \text{ cm}

falls normally on a slit of width

4.0 \text{ cm}

. The angular spread of the central maxima of the diffraction pattern obtained on a screen

1.5 \text{ m}

away from the slit, will be: (a)

60^\circ

(b)

45^\circ

(c)

15^\circ

(d)

30^\circ