Question on: JAMB Physics - 1990
A wave disturbance travelling in air enters a medium in which its velocity is less than that in air. Which of the following statements is true about the wave medium?
A
both the frequency of the wave and the wavelength are decreased
B
the frequency of the wave is decreased while the wavelength is increased
C
the frequency of the wave is unaltered while the wavelength is decreased
D
the frequency of the wave is decreased while the wavelength is unaltered
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Correct Option: C
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