The width of diffraction band is

The width of the difraction band varies

A singled slit of width a is illuminated by violet light of wavelength 400 nm and the width of diffraction pattern is measured as y . When half of the slit width is covered and illuminated by yellow light of wavelength 600 nm, the width of the diffraction pattern is

The width of the diffraction fringe varies :

A parallel beam of light of wavelength lambda is incident normally on a single slit of width d. Diffraction bands are obtained on a screen placed at a distance D from the slit. The second dark band from the central bright band will be at a distance given by

A parallel beam of light of wavelength lambda is incident normally on a single slit of width d. Diffraction bands are obtained on a screen placed at a distance D from the slit. The second dark band from the central bright band will be at a distance given by ....

The width of central diffraction maximum when the width of the aperture increases will