Physics > 2007 > 35
WASSCE
Which of the following factors can affect the speed of sound in air?
I. The temperature of the surrounding
II. The direction of wind
III. The pitch of the sound
I. The temperature of the surrounding
II. The direction of wind
III. The pitch of the sound
A.
I and II only
B.
II and III only
C.
I and III only
D.
I, II and III
Answer: A
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