Man beating drums, no echo at certain freq.
Ratio of speed of sound in nitrogen and helium ?
Adiabatic constant for air ?
Velocity of sound in moist air ?
Temperature for V nitrogen = V oxygen ?
Speed of sound in mixture of oxygen and hydrogen ?
Ratio of hydrogen to Oxygen in a mixture ?
Ratio of amplitude of waves at P and Q ?
Intensity of sound at a given distance from line ?
Wavelength for constructive interference ?
5 Maximas. Wavelength ?
Quincke's tube. Distance moved by sliding tube for I/2 ?
Stations with f1 and f2. find the different elements of the receiving signal.
Resonance Column. End correction and diameter ?
Velocity of sound at 0 degree in the gas ?
Min height of water for resonance ?
radius ? Min freq of resonance for closed tube ?
f2 = 440 Hz. Po = mean P. Pmin and P max at open end ?