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Question 31215
JEE Physics · Hard

Sound Waves: Speed of Sound MCQ

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Speed of SoundHardQuestion 31215

Question

Speed of sound in an ideal gas is √(γRT/M). For oxygen (M=32 g/mol, γ=1.4) at 300 K (R=8.314):
  1. A
    315 m/s
  2. B
    330 m/s
    Correct
  3. C
    352 m/s
  4. D
    400 m/s

Correct answer

330 m/s

Explanation

v = √(1.4×8.314×300/0.032) = √(3491.88/0.032) = √(109121) ≈ 330 m/s.

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