Calculate the width of central maxima, if light of 9000Å incidents upon a slit of width 1.5 mm. Screen is kept 150 cm away from the slit.

Laser light of wavelength 630 nm is incident on a pair of slits which are separated by 1.8 mm. If the screen is kept 80 cm away from the two slits, calculate : fringe separation i.e., fringe width

Distance between first and sixth minima in the diffraction pattern of a single slit is 0.5 mm. Screen is 50 cm away from the slit. If slit width is 2.5mm, then wavelength of light used is –

The distance between the first and the sixth minima in the diffraction pattern of a single slit is 0.5 mm. The screen is 0.5 m away from the slit. If the wavelength of light used is 5000 Å. Then the slit width will be

The light of wavelength 6000 overset(*)A falls normally on a slit of width 2 mm. Calculate the linear width of central maxima on a screen kept 4 m away from the slit.

The light of wavelength 600 nm is incident normally on a slit of width 3 mm. Calculate the linear width of central maximum on a screen kept 3 m away from the slit.

Monochromatic light of wavelength 580 nm is incident on a slit of width 0.30 mm. The screen is 2m from the slit . The width of the central maximum is

Monochromatic light of wavelength 580 nm is incident on a slit of width 0.30 mm. The screen is 2m from the slit . The width of the central maximum is

Light of wavelength 6000Å is incident on a slit of width 0.30 mm. The screen is placed 2 m from the slit. Find (a) the position of the first dark fringe and (b). The width of the central bright fringe.