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    When a grating is used with light that has a wavelength of 621 nm, a third-order maximum is formed at an angle of 18.0°. How many lines per centimeter does this grating have?
    answer in lines/cm

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    Solution Preview

    A principal maximum is formed when the path difference between rays from adjacent slits = d Sin theta is given ...

    Solution Summary

    The solution calculates lines per centimeter for a grating.