Answer: Speed of sound wave slows down.
Explanation :
The speed of the sound wave is given by the following relation :
\(v=\sqrt{\gamma R\ T}\)
where,
\(\gamma\) is the ratio of specific heats.
R is gas constant
T is the absolute temperature.
So, it is clear that the speed of the sound wave is directly proportional to temperature.
If the sound wave travels from high temperature to low temperature, its speed slows down.
Hence, the correct option is (b) " speed slow down ".
