200Hz refers to the frequency of a sound wave, which is the number of times a sound wave repeats itself in one second. In this case, 200Hz means that the sound wave is vibrating 200 times per second.
The speed of sound in air is largely dependent on the frequency of the sound wave. Higher frequency sounds, such as 200Hz, travel faster than lower frequency sounds. This is because the higher frequency sound waves have a shorter wavelength, allowing them to travel more quickly through the air.
The speed of sound at 200Hz in air is approximately 343 meters per second. This is the speed at which the sound wave travels through the air, and it is a constant value regardless of the frequency of the sound.
The speed of sound at 200Hz, or any other frequency, can be measured using a variety of methods. One common method is to use an oscilloscope to measure the time it takes for a sound wave to travel a known distance. The speed can then be calculated using the distance and time values.
The speed of sound at 200Hz is a constant value in air, and cannot be changed. However, the speed of sound in other mediums, such as water or solids, can vary depending on factors like temperature and density.