Question on: JAMB Physics - 2021
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: A
When sound travels from hot air to cold air or from cold air to hot air it will refract, the molecules of air are moving faster and the vibrations of the sound wave can therefore be transmitted faster. Hence, the speed of sound is greater in hot air than it is in cold air
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