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31 January, 12:35

Which statement is true for a sound wave entering an area of warmer air?

A:The wave travels faster and with the same wavelength.

B:The wave travels at the same speed but with an increased wavelength.

C:The wave travels at the same speed and with the same wavelength.

D:The wave travels slower and with an increased wavelength.

E:The wave travels faster and with an increased wavelength.

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Answers (1)
  1. 31 January, 14:40
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    The answer is A ... The sound is transferred by collisions of molecules. Therefore sound waves will travel faster on warm air because collisions of molecules of air in warm air are greater.
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