Compared to the velocity of a 400 Hz sound, the velocity of a 200 Hz sound through air is
A. twice as great.
B. the same.
C. one-half as great.
D. none of the above
Answer:B
Compared to the velocity of a 400 Hz sound, the velocity of a 200 Hz sound through air is
A. twice as great. B. the same. C. one-half as great. D. none of the above