Department of Pre-University Education, KarnatakaPUC Karnataka Science Class 11
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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 - Physics

MCQ

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

Options

  • 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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Solution

cannot be compared with its value in water.

If 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.

Concept: Wave Motion
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APPEARS IN

HC Verma Class 11, 12 Concepts of Physics 1
Chapter 16 Sound Waves
MCQ | Q 3 | Page 351
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