For a compressible fluid, sonic velocity is

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For a compressible fluid, sonic velocity is

1. a property of the fluid
2. always given by √γ RT where γ , R and T are respectively the ratio of specific heats, gas constant and temperature in K
3. always given by ∂p ^1/2 _s, where p, ρ and s are respectively pressure, density and entropy
  ∂ρ
4. always greater then the velocity of fluid at any location
5. Both A and B

Correct Option: E

Here , Options A and B are correct answer .