In a biprism experiment the fringes are observed in the focal plane of the eyepiece at a distance of 1 m from the slit. The distance of 30th bright band from centre is measured as 0.6 cm. When a convex lens is kept at a distance of 20 cm from the slit the distance between two virtual images observed is 1.2 cm. What is the wavelength of light.
In a biprism experiment the fringes are observed in the focal plane of the eyepiece at a distance of 1 m from the slit. The distance of 30th bright band from centre is measured as 0.6 cm. When a convex lens is kept at a distance of 20 cm from the slit the distance between two virtual images observed is 1.2 cm. What is the wavelength of light.
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Transcribed Image Text:In a biprism experiment the fringes are
observed in the focal plane of the eyepiece at a
distance of 1 m from the slit. The distance of
30th bright band from centre is measured as 0.6
cm. When a convex lens is kept at a distance of
20 cm from the slit the distance between two
virtual images observed is 1.2 cm. What is the
wavelength of light.
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