JEE Advance - Physics (2007 - Paper 2 Offline - No. 3)
In the experiment to determine the speed of sound using a resonance column,
prongs of the tuning fork are kept in a vertical plane
prongs of the tuning fork are kept in a horizontal plane
in one of the two resonances observed, the length of the resonating air column is close to the wavelength of sound in air
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
Explanation
Wave produced by tuning Fork in a vertical plane as shown in above figure.
Therefore, fringes of tuning Fork is kept in vertical plane.
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