A stroboscope is a light that flashes on and off at a


A stroboscope is a light that flashes on and off at a constantrate. It can be used to illuminate a rotating object, and if theflashing rate is adjusted properly, the object can be made toappear stationary.

(a) What is the shortest time between flashes oflight that will make a three-bladed propeller appear stationarywhen it is rotating with an angular speed of 16.0 rev/s?

(b) what is the next shortest time interval?

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Physics: A stroboscope is a light that flashes on and off at a
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