Start Free Mock LoginAlready registered? Login here

Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesMedium2 minQB

PhysicsMediuminteger

Calculate the velocity of sound in air saturated with moisture at 25°C and 745 mm pressure. The saturation pressure at 25°C is 23.76 mm of mercury and the velocity of sound at 0°C in dry air is 332 m/s.

Answer:

349

Solution:

Dry air at 25°C: $332 298/273 = 346.8$ m/s. Moist air has density $ρ (1 - 0.378 \frac{e}{P})$ with $e / P = 23.76/745$ , so the factor is 0.988. $v = 346.8/ 0.988 = 349$ m/s.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

Doubts & Discussion

Loading discussions...