Physics - Sound Wave Question with Solution | TestHub

PhysicsSound WaveWavesHard2 minQB

PhysicsHardnumerical

Find the speed of sound at 20°C, 0.76 m Hg and 50% humidity. Saturated vapour pressure at 20°C is 0.0175 m Hg; speed at NTP is 330 m/s.

Answer:

342.60

Solution:

$e = 0.00875$ . Dry: $330 293/273 = 341.9$ m/s. Factor $1 - 0.378 \times 0.00875/0.76 = 0.99565$ . $v = 341.9/ 0.99565 = 342.6$ m/s.

Stream:JEESubject:PhysicsTopic:Sound WaveSubtopic:Waves

⏱ 2mℹ️ Source: QB

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