Wave Optics Tes...

In Young\'s double slit interference experiment, the slit separation is made 3 fold. The fringe width becomes

In a certain double slit experimental arrangement interference fringes of width 1.0 mm each are observed when light of wavelength 5000 Å is used. Keeping the set up unaltered, if the source is replaced by another source of wavelength 6000 Å, the fringe width will be

The figures shows a double slit experiment where P and Q are the slits. The path length PX and QX are nλ and (n + 2) λ respectively, where n is a whole number and A is the wavelength. Taking the central fringe as zero, what is formed at X?

In Young\'s double slit experiment, if one of the slits is closed fully, then in the interference pattern

In Young\'s double slit experiment, a glass plate is placed before a slit which absorbs half the intensity of light. Under this case

The maximum intensity of fringes in Young\'s experiment is I. If one of the slit is closed, then the intensity at that place becomes I₀. Which of the following relation is true?

In a Young\'s double slit experiment (slit distance d monochromatic light of wavelength λ is used and the figure pattern observed at a distance L from the slits. The angular position of the bright fringes are

The Young\'s experiment is performed with the lights of blue (λ = 4360 Å) and green colour (λ = 5460Å ), If the distance of 4th fringe the centre is x, then

In the Young\'s double slit experiment, the spacing between two slits is 0.1 mm. If the screen is kept at a distance 1.0 m from the slits and the wavelength of light is 5000 Å, then the fringe width is

In Young\'s double slit experiment, if L is the distance between the slits and the screen upon which interference pattern is observed, x is the average distance between the adjacent fringes and d being the slit separation. The wavelength of light is given by