An open pipe is in resonance in its fundamental mode. Air, hydrogen and ethane are filled in succession in this pipe. The speed of sound is different in these three media on account of whichA. only the wavelength changesB. both frequency and wavelength changeC. only the frequency changesD. neither frequency nor wavelength changes

An open pipe is in resonance in its fundamental mode. Air, hydrogen an

1.	An open pipe is in resonance in its fundamental mode. Air, hydrogen and ethane are filled in succession in this pipe. The speed of sound is different in these three media on account of whichA. only the wavelength changesB. both frequency and wavelength changeC. only the frequency changesD. neither frequency nor wavelength changes
Answer» Correct Answer - C

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