Question

A vibrating tuning fork makes 500 vibrations in one second. What is the wavelength of the sound produced if the air temperature is 20°C? Group of answer choices

0.500 m
0.686 m
0.343 m
1.46 m
1.87 m

Answer 1

Answer:

wavelength will be 0.686 m

So option (b) is correct

Explanation:

We have given vibration in one second that is frequency = 500 Hz

We know that velocity of sound is 343 m/sec

We have to find the wavelength

We know that velocity is given by $v=\lambda f$

So wavelength $\lambda =\frac{v}{f}=\frac{343}{500}=0.686m$

So wavelength will be 0.686 m

So option (b) is correct