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If a sound wave goes from a cold air region to a hot air region,...

Physics
JAMB 1999

If a sound wave goes from a cold air region to a hot air region, its wavelength will
  • A. increase
  • B. decrease
  • C. decrease then increase
  • D. remain constant
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Correct Answer: Option B
Explanation
If a sound wave goes from a cold air region to a hot air region (which will be less dense), the velocity decreases, and since the frequency is always constant, the wave length decreases with the velocity

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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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WAEC May/June 2024 - Practice for Objective & Theory - From 1988 till date, download app now - 99995
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