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You are given a diffraction grating and you shine laser light with wavelength 500nm through it and produce a diffraction pattern on a screen. You measure the 3rd order bright spot to be at angle 70.0° above the horizontal distance (from the grating to the screen). Using the same grating, calculate the angle (in degrees) pointing to the 2nd order bright spot if you used a laser with wavelength 450 nm.
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