Interference & Diffraction Mock Tests

In a Young's double slit experiment, the fringe width is 0.5 mm. If the distance between the slits and the screen is doubled and the wavelength is halved, the new fringe width will be:

In Young's double slit experiment, if the slit separation is halved and the distance to the screen is doubled, the new fringe width compared to the original fringe width will be:

In Young's double slit experiment, the fringe width is 0.5 mm. If the distance between the slits and the screen is doubled and the separation between the slits is halved, the new fringe width will be:

In a single slit diffraction experiment, light of wavelength 600 nm is incident on a slit of width 0.2 mm. The distance between the slit and the screen is 1.0 m. The width of the central maximum is:

In Young's double slit experiment, the fringe width is found to be 0.4 mm. If the whole experimental apparatus is immersed in water (μ = 4/3) without changing the setup, the new fringe width will be:

In Young's double slit experiment, light of wavelength 500 nm is used. The distance between the slits and the screen is 1.0 m and the slit separation is 0.5 mm. The fringe width is:

In Young's double slit experiment, the position of the nth bright fringe from the central maximum is given by: (D = distance to screen, d = slit separation, λ = wavelength)

A single slit of width 0.1 mm is illuminated by light of wavelength 600 nm. The screen is 1 m away. The width of the central maximum is: