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3 years ago

A standing wave measures 12 m between its first and fourth node and its frequency 325 Hz. What is the standing wave's speed?

Physics

1 answer:

satela [25.4K]3 years ago

8 0

Answer:

1300 m/s

Explanation:

Applying,

v = λf/2............... Equation 1

Where v = velocity or speed of wave, f = frequency of wave, λ = wavelength of wave.

From the question,

Given: f = 325 Hz, λ = (12×2/3) = 8 m

Substitute these values into equation 2

v = 325(8)/2

v = 1300 m/s.

Hence the standing wave speed is 1300 m/s

The right option is 1300 m/s

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<u />

<u>Better way:</u>

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