The correct answer is<span> B.The speed of sound in air is directly proportional to the temperature of the air.
When the temperature increases so does the speed of sound. Sound is faster by </span>0.60 m/s for every higher degree in air temperature because the air density is reduced and the sound can travel faster.
Atmospheric refraction is the deviation of light or other electromagnetic wave from a straight line as it passes through the atmosphere due to the variation in air density as a function of height. ... Refraction not only affects visible light rays, but all electromagnetic radiation, although in varying degrees.
So in short, the answer is D.
(My answer got deleted because it didnt explain which is dumb)
Answer:
D. Amplitude
Explanation:
The amplitude of sound waves determines how loud or soft a sound is. The loudness of a sound is a function of its amplitude.
Amplitude is defined as the maximum displacement of wave from its source.
The amplitude of a sound wave determines how loud the sound can be heard.
A wave with a large amplitude will have a large loudness. Waves of low amplitude will also show softness.
Amplitude is one of the fascinating properties of waves.
Answer:
option 1 will be the answer.
Explanation:
hope it helps.