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Question
Speed of sound waves in a fluid depends upon ______.
- directty on density of the medium.
- square of Bulk modulus of the medium.
- inversly on the square root of density.
- directly on the square root of bulk modulus of the medium.
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Solution
c and d
Explanation:
We define the speed of sound waves in a fluid as, `v = sqrt(B/ρ)`, Here B is the Bulk modulus and ρ is the density of the medium.
It means, `v ∝ 1/sqrt(ρ)` ......[∴ For any fluid, B = constant]
And `v ∝ sqrt(B)` ......[∴ For medium, ρ = constant]
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