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A diffraction pattern forms when light passes through a single slit. The wavelength of the light is 665 nm. Determine the angle that locates the first dark fringe when the width of the slit is each of the following.(a) 1.60 10-4 m °(b) 1.60 10-6 m
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A clock is set against an accurate standard and 30 days later is found to be in error by 12 seconds. What is the percentage of error in its time keeping?
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