Question

3. What is the temperature if a 545-Hz sound wave has a wavelength of 0.651 m

Answer 1

Answer:

19.33°C

Explanation:

To find the value of T you use the following formula:

$v=343+0.61T$

v: speed of sound

To calculate v you use:

$v=\lambda f$

λ: wavelength = 0.651m

f:  = 545Hz

by replacing :

$v=(0.651m)(545s^{-1})=354.79m/s$

Finally, by replacing in the first formula you obtain:

$354.79=343+0.61T\\\\T=19.33\°C$

T = 19.33°C