Wave Optics Mock Tests

In Young's double slit experiment, the fringe width is found to be β. If the entire apparatus is immersed in water of refractive index 4/3, the new fringe width will be:

In Youngs double slit experiment, the intensity at the central maximum is I₀. The intensity at a point where the path difference is λ/4 is:

When a sound wave passes from air to water, which of the following remains constant:

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 slit separation is halved, the new fringe width becomes:

A single slit of width 0.5 mm is illuminated by light of wavelength 500 nm. The distance of the first secondary maximum from the central maximum on a screen placed at a distance of 1 m from the slit is approximately:

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

In a single-slit diffraction experiment, the width of the central maximum is:

In Young's double slit experiment, the fringe width is 6 mm. The distance between the 3rd bright fringe and the 6th dark fringe is: