(i) Define coherent source.
(ii) What will be the effect on the width of the central bright fringe in the diffraction pattern of a single slit if :
(1) Monochromatic light of smaller wavelength is used.
(2) Slit is made narrower.

What is the difference between polarised light and unpolarised light based on the direction of electric vector (vecE) ? (ii) What will be the effect on the width of the central bright fringe in the diffraction pattern of a single slit if : (1) Monochromatic light of smaller wave length is used ? (2) Slit is made narrower ?

Central fringe obtained in diffraction pattern due to a single slit-

The angular width of the central maximum of the diffraction patternn in a single slit (of width a) experiment, with lamda as the wavelenth of light, is

Angular width (beta) of central maximum of a diffraction pattern on a single slit does not depend upon

Find the half angular width of the central bright maximum in the fraunhofer diffraction pattern of a slit of width 12xx10^(-5)cm when the slit is illuminated by monochromatic light of wavelength 6000 Å.

First diffraction minima due to a single slit of width 10^-4 cm is at theta=30^@ . The wavelength of the light used is –

The first diffraction minima due to a single slit diffraction is at theta=30^(@) for a light of wavelength 5000Å The width of the slit is

The distace 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 wavelength of the light used is 5000 A^(0) , then the slit width will be

Find the angular fringe width in Young's double slit experiment using a monochromatic light of wavelength 500 nm when the slits are separated by 2.5 mm.

In the diffractin pattern of a single slit aperture, the width of the central fringe compared to widths of te other fringes is-