If a sound wave goes from a cold air region to ... - JAMB Physics 1999 Question
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 Option: B
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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