Plane microwaves are incident on a long slit having a width of 5.0 cm. Calculate the wavelength of the microwaves if the first diffraction minimum is formed at `theta=30^@`.

Plane microwaves are incident on a long slit of width 6 cm. if the first diffraction minimum is formed at 30^(@) then the wavelength of microwaves is

What must be ratio of the slit width to the wavelength for a single slit, to have the first diffraction minimum at 45˚?

Light of frequency 25 GHz is incident normally on a rectangular slit of width 4 cm. Calculate the angular width of the central maximum of the diffraction pattern formed by the slit.

What must be the ratio of slit width on the wavelength for a single slit to have the firust diffraction minimum at 45^@ .

First diffraction minima due to a single slit of width 10^-4 cm is at theta=30^@ . The wavelength of the light used is –

First diffraction minima due to a single slit of width 10^-4 cm is at theta=30^@ . The wavelength of the light used is –