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qUESTIONS

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

In biprism experiment, the light of wavelength λ is used to obtain an interference pattern. Then fringe width is W1 at distance D1 from the screen. When the screen is moved towards biprism, fringe width becomes W2 at distance D2. The distance between two virtual images of the slit is

In Young’s double slit experiment, for the nth dark fringe (n=1,2,3,………) the phase difference of the interfering waves in radian will be

Refractive index of a medium is μ. The incidence angle is twice that of refracting angle. The angle of incidence is

In Young’s double slit experiment, the fringe width is found to be 0.6 mm. without disturbing anything, the whole arrangement is dipped in water of refractive index 4/3, the new fringe width will be

Two coherent sources of intensities I1 and I2 produce an interference pattern. The maximum intensity in the interference pattern will be

A ray of light through air is incident on a denser medium at an angle ‘i’. it is partly reflected and partly refracted. Both these rays are perpendicular to each other. The refractive index of the denser medium is ‘n’ equal to

In Young’s double slit experiment, a third slit is made in between the double slits then

In the Young’s double slit experiment the central maxima is observed to be I 0. If one of the slits is covered, then intensity at the central maxima will become-

What is the minimum thickness of a thin film required for constructive interference in the reflected light from it? Given, the refractive index of the film=1.5, the wavelength of the light incident on the film =600nm?

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