In double slit experiment using light of wave length 320 nm the angular width of a fringe formed on a distant screen is `0.1^@`. What is the spacing between the two slits?

Two slits are 1mm apart and a screen is placed at some distance. When the slits are illuminated with light of wavelength 500nm, fringe separation obtained on the screen is 0.5mm. What is the distance between the screen and the slits?

In Young's double slit experiment using light of wavelength 5000Å, the fringe width is 0.6 cm. If the distance between the slit abd screen is reduced to half , calculate the new fringe width.

In Young's double slit experiment, the ratio of intensity at the maxima and minima in the interference pattern is 25 : 9 . What is the ratio of the widths of the two slits ?

In a double slit experiment, if the screen is moved by 5 x 10^-2 m towards the slit the change in fringe width is 3 x 10^-5 m. If the distance between the slits is 10^-3 m, calculate the wavelength of the light used.

A beam of light consisting of two wavelengths 6500 A ˙ and 5200 A ˙ is used to obtain fringes in a Young's double slit experiment.Find the distance of the third bright fringe on the screen from central maximum for the wavelength 6500 A. The distance between the slits is 2mm and the distance between the plane of the slits and the screen is 120 cm

In Young's experiment the ratio of intensity at the maxima and minima in the interference pattern is 36:16. What is the ratio of the widths of the two slits?

In a young's double slit experiment two slits are made one millimeter apart and the screen is placed one meter away. What is the fringe separation when monochromatic light of wavelenght 500nm is used?

Yellow light of wavelength 6000Å produces fringes of width 0.8 mm in Young's double slit experiment. What will be the fringe width of the light source if it is replaced by another monochromic source of wavelength 7500Å and sepearation between the slits is doubled?