A parallel light beam of wavelength 6000Å passes through a slit 0.2 mm wide and forms a diffraction pattern on a screen 1.0 m away from the slit. Find the width of the central maximum in mm on the screen.

Light of wavelength 6500 Å passes through a slit 0.1 cm wide and forms a diffraction pattern on a screen 1.8 m away. The width of the central maximum in mm is

Light of wavelength 6500 Å passes through a slit 0.1 cm wide and forms a diffraction pattern on a screen 1.8 m away. The width of the central maximum in mm when the apparatus is immersed water of refractive index (4)/(3) is

Light of wavelength 5000Å is diffracted through a slit 0.2 mm wide and forms a diffraction pattern on a screen. It is found that the first minima lie at 5mm on either side of the central maximum on the screen. Determine the distance of the screen in metre from the slit.

Monochromatic electromagnetic radiation from a distant source passes through a slit.The diffraction pattern is observed on the screen 2.5 m from the slit. If the width of the central maximum is 6.02 mm, what is the slit width if the wavelength is:- 0.500 nm (X rays)

Light of wavelength 6328 Å is incident normally on a slit having a width of 0.2 mm . The distance of the screen from the slit is 0.9 m . The angular width of the central maximum is

Light of wavelength 6328 Å is incident normally on a slit having a width of 0.2 mm . The distance of the screen from the slit is 0.9 m . The angular width of the central maximum is