GR0877 Problem 45
PROBLEM STATEMENT: This problem is still being typed.
SOLUTION: (C) According to the general Doppler formula , where is observed frequency, is the speed of sound waves in the medium, and are the speed of the source and the observer relative to the medium, respectively. Sign convention: the speed is taken to be positive if the source is moving away from the observer at speed , while is taken to be positive if the observer is moving toward the source at speed . In our case, the source and observer are moving in such a way that (and equal to the speed of the wind ). Thus, we have no Doppler effect at all: .
Found a typo? Comment!
Jump to the problem
Want to get a full PDF with solutions? Read THIS.
The comments appending particular solutions are due to the respective users. Educational Testing Service, ETS, the ETS logo, Graduate Record Examinations, and GRE are registered trademarks of Educational Testing Service. The examination questions are © 2008 by ETS.