A wedge of angle `0.5^(@)` is illuminated with sodium light whose two lines corresponds to the wavelengths `5890Å` and `5896Å`. Find the distance from the apex at which the maxima due to the two wavelengths first coincide when observed in the reflected light. (the wedge contains air)

A beam of light consisting of wavelengths 6000 Å and 4500 Å is used in a YDSE with D = 1 m and d = 1 mm. Find the least distance from the central maxima, where bright fringes due to the two wavelengths coincide.

A beam of light consisting of two wavelength, 6500 Å and 5200 Å is used to obtain interference fringes in a Young's double slit experiment. Find the distance of the third fringe on the screen from the central maximum for the wavelength 6500Å . What is the least distance from the central maximum at whixh the bright fringes due to both wavelengths coincide? The distance between the slits is 2 mm and the distance between the plane of the slits and the screen is 120 cm.

Two sources of light of wavelength 4500 Å annd 6000 Å are used simultaneously in Young's double slit experiment. At which order of the two wavelength pattern,s the fringes coincide?

In a Young's double slit experiment, if the incident light consists of two wavelengths lamda_(1)andlamda_(2) , the slit separation is d, and the distance between the slit and the screen is D, the maxima due to the two wavelengths will coincide at a distance from the central maxima, given by :

Two sources of light of wavelengths 2500 Å and 3500 Å are used in Young’s double slit expt. simultaneously. Which orders of fringes of two wavelength patterns coincide?

In a YDSE arrangement, incident yellow light is composed of two wavelength 5890 Å and 5895 Å . Distance between the slits is 1 mm and the screen is placed 1 m away. Order upto which fringes can be seen on the screen will be :