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 wav...

Question 1 Report

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?

both the frequency of the wave and the wavelength are decreased

the frequency of the wave is decreased while the wavelength is increased

the frequency of the wave is unaltered while the wavelength is decreased

the frequency of the wave is decreased while the wavelength is unaltered

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