Wave Optics Tes...

How fast a person should drive his car so that the red signal of light appears green?
(Wavelength for red colour = 6200 Å and wavelength for green colour = 5400 Å)

Two beams of light will not give rise to an interference pattern, if

A parallel beam of fast moving electrons is incident normally on a narrow slit. A screen is placed at a large distance from the slit. It the speed of the electrons is increased, which of the following statement is correct

Consider Fraunhoffer diffraction pattern obtained with a single slit at normal incidence. At the angular position of first diffraction minimum, the phase difference between the wavelets from the opposite edges of the slit is

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

In the experiment of diffraction at a single slit, if the slit width is decreased, the width of the central maximum

Conditions of diffraction is

The phenomenon of diffraction of light was discovered by

In a diffraction pattern by a wire, on increasing diameter of wire, fringe width

What will be the angular width of central maxima in Fraunhoffer diffraction when light of wavelength 6000 Å is used and slit width is 12 × 10^–5 cm?