Physics

Physics

Problem

For a gas, the speed of sound is expressed as v=γP/ρv = \sqrt{\gamma P/\rho}, where PP is pressure, ρ\rho is density and γ\gamma is a constant. The dimensional formula for γ\gamma is a) M0L2T−2M^{0}L^{2}T^{-2} b) Dimensionless c) M0L−1T1M^{0}L^{-1}T^{1} d) M L−1T−2M\,L^{-1}T^{-2}

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