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An apparatus similar to the one used in diffraction grating experiment is used to measure ruling density of a diffraction grating. A second order maximum is observed to be 1.463 m from the central maximum. The wavelength of the coherent, monochromatic light striking the grating is 501 nm. The distance from the double slit to the display screen is 2.09 m.

What is the slit spacing of this diffraction grating?

What is the ruling density of this diffraction grating?

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