College of Admission Tests Multan

Miscellaneous

Solve the question of and select the option from the choices A through D/E. Check your Answer and view the explanation.

Question: 2

In which medium the speed of sound is maximum at a temperature of around 20°C?
  • Air
  • Granite
  • Water
  • Iron

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Correct Answer: D

0
The speed of sound depends on the elasticity and density of the medium through which it is travelling. Greater the elasticity and lower the density, sound travels faster in that medium. At temperature of 20°C, the speed of sound is maximum in iron.