Light with wavelength `lambda = 589.0nm` falls normally on a diffraction grating with period `d = 2.5mu m`, comprising `N = 10 000` lines. Find the angular width of the diffraction maximum of second order.

Find the wavelength of monochromatic light falling normally on a diffraction grating with period d = 2.2 mu m if the angle between the directions to the Fraunhofer maxima of the first and the second order is equal to Delta theta = 15^(@) .

Light with wavelength 530nm falls on a transparent diffraction grating with period 1.50 mu m . Find the angle, relative to the grating normal. At which the Fraunhofer maximum of highest order is observed provided the light falls on the grating (a) at right angles, (b) at the angle 60^(@) to the normal.

Light with wavelength lambda = 0.60 mu m falls normally on a diffraction grating inscribed on a plane surfcae of a plano-curvex cylinderical glass lens with curvature radius R = 20 cm . The period of the grating is equal to d = 6.0 mu m . Find the distance between the principle maxima of first order located symmetrically in the focal plane of that lens.

Light with wavelength lambda falls on a diffracting grating at right angles. Find the angular dispersion of the grating as a function of diffraction angle theta .

Light with wavelength 535nm falls normally on a diffraction grating. Find its period if the diffraction angle 35^(@) corresponds to one of the Fraunhofer maxima and the highest order of spectrum is equal to five.

A plane light wave with wavelength lambda falls normally on a phase diffraction grating whose side view is shown in Fig. The grating is cut on a glass plate with refractive index n . Find the depth h of the lines at which the intensity of the central Fraunhofer maximum is equal to zero. what is in this case the diffraction angle corresponding to the first maximum?