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प्रश्न
The bulk modulus and the density of water are greater than those of air. With this much of information, we can say that velocity of sound in air
विकल्प
is larger than its value in water
is smaller than its value in water
is equal to its value in water
cannot be compared with its value in water.
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उत्तर
cannot be compared with its value in water.
If B is the bulk modulus and ρ is the density, then the velocity of sound is given by:
\[Velocity = \sqrt{\frac{B}{\rho}}\]
If both B and ρ are greater, then we cannot compare \[\frac{2B}{2\rho} = \frac{3B}{3\rho} = \frac{B}{\rho}\]
For proper comparison, we need numerical values.
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