Part of sound wave where air pressure is greater, is known as
If the pressure amplitude in a sound wave is tripled. Then by what factor the intensity of the sound wave is increased
The pressure, temperature and velocity of air flowing in a pipe are 5 bar, 500 K and 50 m/s, respectively. The specific heats of air at constant pressure and at constant volume are 1.005 kJ/kgK and 0.
During a test, sound level was measured as 90 dB in the operator’s cabin on a tractor. Taking reference sound pressure as 2 * 10-5 N m-2, the measured RMS sound pressure in N m-2 is
The speed of sound in air at N.T.P. is 300 m/s. If air pressure becomes four times, then the speed of sound will be
A room contains 35 kg of dry air and 0.5 kg of water vapor. The total pressure and temperature of air in the room are 100 kPa and 25°C respectively. Given that the saturation pressure for water at 25
The pressure, dry bulb temperature and relative humidity of air in a room are 1 bar, 30°C and 70%, respectively. If the saturated steam pressure at 30°C is 4.25 kPa, the specific humidity of the roo