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A student sets up a double - slit experiment using mono- chromatic light of wavelength l....

A student sets up a double - slit experiment using mono- chromatic light of wavelength l. The distance between the slits is equal to 25l. (a) Find the angles at which the m 5 1, 2, and 3 maxima occur on the viewing screen. (b) At what angles do the first three dark fringes occur? (c) Why are the answers so evenly spaced? Is the spacing even for all orders? Explain.

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