Discover the number of lines-cm in the grating

Reference no: EM13657849

Monochromatic light of wavelength 416 nm passes during a diffraction grating. The third order image is separated from the central image by an angle of 64degrees. Discover the number of lines/cm in the grating.

7200 lines/cm

4500 lines/cm

4600 lines/cm

5400 lines/cm

Reference no: EM13657849

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