Question

a stretched string is given a shake such that it completes 5000 vibrations in 10 seconds.What will be the frequency of the sound produced?Will you be able to hear it?

Answer 1

Answer:

5000 vibrations in 10 seconds amount to 500 vibrations in 1 second, i.e. 500 cps or Hertz. This is clearly an audible note whose pitch against modern standard A 440 is tuned at an interval ratio of 500/440 above low A. Simplifying, 500/440 = 25/22. This is an assuperfluous second, nearly a tone raised by almost a quarter-tone; in fact, more exactly, it is a pitch lying 2.2131 piano semitones above standard low A 440. This boils down to a noticeably sharply tuned low B just below middle C.