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CGP EDU Academic Team
Published on: August 13, 2026
Young's double slit interference apparatus is immersed in a liquid of refractive index 1.44. It has slit separation of 1.5 mm . The slits are illuminated by a parallel beam of light whose wavelength in air is 690 nm . The fringe-width on a screen placed behind the plane of slits at a distance of 0.72 m , will be :
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Verified by ExpertsThe correct answer is:
A
Section - A
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