Vibration, Wave and Sound

A three-bladed

Problem by Hugo Alberto Luyo Sánchez
30 Nov 1999 00:00 WIB

  A three-bladed fan rotates with frequency n =10 s-1, and is illuminated by a lamp with flash estrodoscópica whose frequency can vary in the range from 2 to 200 Hz frequency values ​​for which the lamp flacheo seems the fan.