A slit 4.0 cm wide is irradiated with microwaves of 2.0 cm. Find the angular spread of central maximum assuming incidence normal to the plane of the slit.

A slit 4 cm wide is irradiated with microwaves of wavelength 2 cm. Find the angular spread of central maxima assuming incidence normal to the plane of the slit.

A slit 4.0 cm wide is irradiated with microwaves of wavelength 2.0 cm .Fin the angular spread of central maxima assuming incidence normal to the plane of the slit.

A slit whose width is 5.0 cm is irradiated with microwaves of wavelength 2 cm . The angular spread of the central maximum ? (Assume that the incidence is along the normal )