Question

.. Predict/Calculate For a science experiment, you would like to use the Doppler effect to double the perceived frequency of a harmonica, from the 261.7-Hz tone (middle C) that it emits, t,o 523.3 Hz (C5 note). (a) Which strategy will accomplish your goal more easily: move the harmonica, or move the observer? (b) Cal- culate the speed the harmonica must have in order for a station- ary observer to hear 523.3 Hz. (c) Calculate the speed an observer must have in order to perceive a 523.3-Hz sound from a stationary harmonica that emits sound at 261.7 Hz. 50. "

Answer 1

(a) Moving harmonica will will be easier because for this speed required os lesser.