The optical path difference between two identical waves arriving at a point is `371 lambda` . Is the point bright or dark ? If the path difference is 0.24 mm . Calculate the wavelength of light used .

The path difference between two identical waves arriving at a point is 85.5lambda .. If the path difference is 42.5 micrometer, the wavelength is

The distances of a point on the screen from two coherent sources differ by 93 wavelengths . Is the point bright or dark ? If the path difference is 0.0465 mm , calculate the wavelength of the source of light .

The path difference of two identical waves arriving at a point is 100.5 lambda . The phase difference is 44 micrometer. The wavelength of light is used is

State the path difference between two waves for destructive interference .

What is the phase difference between two points on a wavefront ?

State the path difference between two waves for constructive interference .

The phase difference between the two waves reaching an arbitary point P from S_1 and S_2 is given by

In biprism experiment the distance between the two virtual images of the slit is 0.1 cm and the distance between the slit and biprism is 1 m .If the band width is 0.058 cm , calculate the wavelength of light .

If the phase difference between the two light waves interfering at a point of the medium is equal to odd multiple of pi then that point appears as

Following observations were made in a biprism experiment. Distance between virtual images of slit = 5 mm. Distance between slit and eyepiece = 75 cm. Distance between second dark band and tenth dark band of same side of centre is 0.576 mm. Calculate wavelength of light used.