What is the diameter of the ball bearing

Reference no: EM13327849

a small ball bearing is illuminated with blue light from an argon ion laser (4880 A.) On a screen 4.000 m from the aperture, a ring pattern forms with the second dark ring having a diameter of 18.00 cm. What is the diameter of the ball bearing? Express answer in micrometers(microns).

Reference no: EM13327849

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