Which of the following is an example of sound refraction?
A. sound waves bouncing off a canyon wall to create an echo
B. reverberations in a concert hall
C. a high pitch sound changing to a low pitch sound
D. sound waves changing direction as they
encounter different air temperatures
would this be B or D? :P

Question

Which of the following is an example of sound refraction?
A. sound waves bouncing off a canyon wall to create an echo	
B. reverberations in a concert hall	
C. a high pitch sound changing to a low pitch sound	
D. sound waves changing direction as they 
encounter different air temperatures
would this be B or D? >:P

anonymous · Answer

D. sound waves changing direction as they 
encounter different air temperatures
would this be B or D? >:P 

refraction means change in direction due to interference

anonymous · Answer

ah i see