Question

Symphonic musicians always “warm up” their wind instruments by blowing into them before a performance. What purpose

does this serve?

Short answer

The constant temperature of body air helps the instrument to work well at the resonant frequencies.

Step-by-step solution

Write the given data:

Symphonic musicians always warms up their instruments.

Determine the concept

Consider the formula for the wavelength in terms of the frequency and the speed of wave as:

$\mathit{\lambda }\mathbf{=}\frac{{\mathbf{v}}_{\mathbf{s}}}{\mathbf{f}}$

Here, the frequency is f and the speed of the wave is $v_s$.

Determine the reason for the given condition

Consider that the symphonic musicians warm the instruments with the air blown from their mouth as the air from the mouth is at the body temperature. The air blown in the instruments is during the performance when the instrument is operated. This results in the constant supply of air in the instrument with the constant temperature

Constant temperature of the air helps the speed of the sound well because the temperature of the air determines the resonant frequencies at which the instruments works.