In a single slit diffraction pattern, how does the angular width of central maxima change when slit width is decreased

In a single slit diffraction pattern, how is the angular width of central bright maximum changed when (i) the slit width is decreased. (ii) the distance between the slit and screen is increased. (iii) Light of smaller wavelength is used. Justify your answer.

In a single slit diffraction pattern the angular width of a central maxima is 30^(@) . When the slit is illuminated by light of wavelength 6000Å . Then width of the slit will be approximately given as :

In a single slit diffraction pattern intensity and width of fringes are

In single slit diffraction pattern, how does the angular separation between firnges change when distance of screen from slit is doubled ?

In single slit diffraction experiment, the width of the central maximum inversely proportional to