a diffraction pattern forms when light passes during a
A diffraction pattern forms when light passes during a single slit. The wavelength of the light is 686 nm. Decide the angle that locates the first dark fringe when the width of the slit is (a) 1.7 x 10-4 m and (b) 1.7 x 10-6 m.
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the doppler shift of ultrasonic waves can gauge the speed of blood in an artery if the frequency of the stationary
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