Question: A stroboscope is set to flash every 4 . 0 0 ms . What is the frequency of the flashes? a ) 2 5 0

A stroboscope is set to flash every 4.00 ms. What is the frequency of the flashes?
a)250 Hz
b)39.8 Hz
c)4.00 mHz
d)25.1 mHz

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