At what angle will the first order diffrection angle be

Reference no: EM13320103

If a red laser light (He-Ne Laser) with a wavelength of 633 nm and a frequency of 4.739 *10^14 Hz, if the light passes through a grating with 100 lines per mm, at what angle will the first order diffrection angle be? If a second order exists what will be it's angle?

Reference no: EM13320103

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