Diffraction gratings are based upon the principle of constructive interference. Suppose that light is coming in at an incident angle of zero and a reflected angle of 1e-6 (radians). Suppose further that the gratings are separated by five millimeters. What is the color of the light? (Hint: for small angles, the sine of the angle is approximately equal to the angle itself.)
Diffraction gratings are based upon the principle of constructive interference. Suppose that light is coming in at an incident angle of zero and a reflected angle of 1e-6 (radians). Suppose further that the gratings are separated by five millimeters. What is the color of the light? (Hint: for small angles, the sine of the angle is approximately equal to the angle itself.)
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Diffraction gratings are based upon the
principle of constructive interference. Suppose
that light is coming in at an incident angle of
zero and a reflected angle of 1e-6 (radians).
Suppose further that the gratings are separated
by five millimeters. What is the color of the
light? (Hint: for small angles, the sine of the
angle is approximately equal to the angle itself.)
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