A Young double slit experimental setup is immersed in water of refractive index 1 . 33 . It has slit separation 1 mm and the distance between slits and screen is 1 . 33 m . If the wavelength of incident light on slits is 6300 A then the fringe width on screen is

Question

A Young double slit experimental setup is immersed in water of refractive index 1 . 33 . It has slit separation 1 mm and the distance between slits and screen is 1 . 33 m . If the wavelength of incident light on slits is 6300 A then the fringe width on screen is, 6 . 3 mm, 0 . 63 mm, 0 . 63 m, 6 . 3 m

MARKS App · Accepted Answer

The fringe width when Young's double slit experiment setup is immersed in water, y = λ D μ d Substitute the given values in the above equation. y = 6300 × 10 - 10 × 1 . 33 1 . 33 × 10 - 3 y = 6 . 3 × 10 - 4 m y = 0 . 63 mm

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