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Light from a source of wavelength 475 nm passes through a single slit and falls on...

Light from a source of wavelength 475 nm passes through a single slit and falls on a screen 2.5 m away. If the slit width is 2.00 x 10^-6 m, how many maxima occur, including the central maximum?

A student performs Young's double-slit experiment using a slit separation of 21.6 mm. A screen is placed 3.00 m from the centre of the sources such that a point on the fifth nodal line is 37.5 cm from the centre of the interference pattern. Find the wavelength of the light used and identify its colour.

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