A.The quicker it vibrates, the greater the frequency of sound it produces.B.The slower it vibrates, the higher the frequency of sound it produces.C.The quicker it vibrates, the lower the frequency of sound it produces.D.The frequency of sound it produces is not in proportion to the speed it vibrates.
A.The quicker it vibrates, the greater the frequency of sound it produces.
B.The slower it vibrates, the higher the frequency of sound it produces.
C.The quicker it vibrates, the lower the frequency of sound it produces.
D.The frequency of sound it produces is not in proportion to the speed it vibrates.