At what angle does the first-order maximum occur

Reference no: EM13498153

Monochromatic light shines on a diffraction grating. When the light source and the grating are in air, the first-order maximum occurs at an angle of 19°. At what angle does the first-order maximum occur when the source and the grating are immersed in water (n = 1.32)?

Reference no: EM13498153

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