JEE Main2008PhysicsWaves and SoundActual
The speed of sound in oxygen ( O ₂ ) at a certain temperature is 460 ~ms ⁻¹ . The speed of sound in helium (He) at the same temperature will be (assumed both gases to be ideal)
Options
- A460 ~ms ⁻¹
- B500 ~ms ⁻¹
- C650 ~ms ⁻¹
- DNone of these
Correct answer
D. None of these
Step-by-step solution
aligned & v= R T M & V₁ V₂ = ₁ M₂ ₂ M₁ = 7 5 4 5 3 32 & 460 V₂ = 21 25 8 v₂= 460 5 2 2 21 =1420 aligned