1. A transverse wave consists of –

  • only crests
  • only trough
  • both crests and troughs
  • rarefactions and compressions

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both crests and troughs

2. Sound waves travel fastest in –

  • Solid
  • liquids
  • Gases
  • Vacuum

3. With the propagation of longitudinal waves through a medium, the quantity transmitted is –

  • Matter
  • Energy
  • Energy and Matter
  • Energy, Matter, and Momentum.

4. Doppler’s effect in sound is due to-

  • Motion of source
  • Motion of observer
  • The relative motion of source and observer
  • None of these

5. Velocity of sound in a gas is independent of –

  • Temperature
  • Pressure of gas
  • Humidity
  • Nature of gas

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Pressure of gas

6. The velocity of sound in any gas depends upon –

  • the wavelength of sound only
  • density and elasticity of gas
  • the intensity of sound waves
  • only amplitude and frequency of sound

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density and elasticity of gas

7. If the length of a sonometer wire is increased, then its frequency -0

  • Increases
  • Decreases
  • Remains the same
  • None of these

View Answer

Remains the same

8. Velocity of sound in a gaseous medium –

  • Increases with temperature
  • Decreases with temperature
  • Does not depend on the temperature
  • None of these.

View Answer

Increases with temperature

9. In a wave motion the maximum displacement is called –

10. On increasing temperature the velocity of sound in a gas-

11. On increasing pressure the velocity of sound in a gas –

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remain unchanged

12. In the air the velocity of sound depends upon –

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density of air

13. Beats are the result of –

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superposition of two waves of nearly equal frequencies

14. The velocity of sound waves in a medium depends on –

View Answer

Frequency of the source