A micture of light, consisting of wavelength 590nm and an unknown wavelength, illuminates Young's double slit and gives rise to two overlapping interference patterns on the scree. The central maximum of both lights coincide. Further, it is obseved that the third bright fringe of known light coincides with the 4th bright fringe of the unknown light. From this data, the wavelength of the unknown light is:

A micture of light, consisting of wavelength 600nm and an unknown wavelength, illuminates Young's double slit and gives rise to two overlapping interference patterns on the scree. The central maximum of both lights coincide. Further, it is obseved that the third bright fringe of known light coincides with the 4th bright fringe of the unknown light. From this data, the wavelength of the unknown light is:

A mixture of light consisting of wavelength 590 nm and an unknown wavelength, illuminates Young's double slit and gives rise to two overlapping interface patterns on the screen. The central maximum of both light coincide. Further it is observed that the third bright fringe of known light coincides with the 4^(th) bright fringe of the unknown light. From this data, the wavelength of the unknown light is

Mixture of lights consiosting of wavelengths 590 nm and an unknown wavelength illuminates young' s double slit and gives rise to two overlapping interference patterns on the screen . The central maximum of both lights coincide. Further, it is observed that the third brright fringe of 590 m light conincides with the fourth bright fringe of the other light. From this data, calculate the unknown wave length.

In YDSE setup slits are illuminated by a light of wavelength 4000Å and a light of unknown wavelength. It is observed that fourth dark fringe of known wavelength coincide with second bright fringe of unknown wavelength. Find the unknown wavelength.