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Waves question

2007 · Shift 2 · Q11
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Waves question

2007 · Shift 2 · Q11

JEE AdvancedPhysicsWavesMCQ+3 / −1
In the experiment to determine the speed of sound using a resonance column,
  1. A
    prongs of the tuning fork are kept in a vertical plane
  2. B
    prongs of the tuning fork are kept in a horizontal plane
  3. C
    in one of the two resonances observed, the length of the resonating air column is close to the wavelength of sound in air
  4. 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
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