Question

A sound wave in steel with a frequency of 500 Hz and a wavelength of 3.0 metres. What is its speed?

Answer 1

wavelength=3.0

frequency=500

so,Speed=frequency×wavelength

=500×3.0

=1500.(ans)

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Answer 2

Answer:

The speed of the sound wave in steel is 1500m/s.

Explanation:

We will use the following relation to solve this question,

$f=\frac{v}{\lambda}$       (1)

Where,

f=frequency of the wave

v=speed of the wave

λ=wavelength of the wave

From the question we have,

f=500Hz

λ=3 meters

By substituting the required values in equation (1) we get;

$500=\frac{v}{3}$

$v=500\times 3$

$v=1500m/s$

Hence, the speed of the sound wave in steel is 1500m/s.