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1. |
In the experiment to determine the speed of sound using a resonance column,_____. |
A. | prongs of the tuning fork are kept in a vertical plane |
B. | prongs of the tuning fork are kept in a horizontal plane |
C. | in one of the two resonances observed, the length of the resonating air column is close to the wavelength of sound in air |
D. | in one of the two resonances observed, the length of the resonating air column is close to half of the wavelength of sound in air |
Answer» B. prongs of the tuning fork are kept in a horizontal plane | |