Asound wave travels from air that is at 24 c into air that is 15 c. the sound wave will stay at the same speed slow down speed up

Speed of sound wave slows down.

Explanation :

The speed of the sound wave is given by the following relation :

where,

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 ".

luster is not a good characteristic to use by itself because luster is the property of minerals that indicates how much the surface of a mineral reflects light. the luster of a mineral is affected by the brilliance of the light used to observe the mineral surface.