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A sound wave travels in air at a speed of 340 m/s. If the frequency of the sound

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Question: A sound wave travels in air at a speed of 340 m/s. If the frequency of the sound is 170 Hz, what is the wavelength?

Options:

  1. 2 m
  2. 1 m
  3. 0.5 m
  4. 0.2 m

Correct Answer: 2 m

Solution: 

Wavelength λ = v/f = 340 m/s / 170 Hz = 2 m.

A sound wave travels in air at a speed of 340 m/s. If the frequency of the sound

Practice Questions

Q1
A sound wave travels in air at a speed of 340 m/s. If the frequency of the sound is 170 Hz, what is the wavelength?
  1. 2 m
  2. 1 m
  3. 0.5 m
  4. 0.2 m

Questions & Step-by-Step Solutions

A sound wave travels in air at a speed of 340 m/s. If the frequency of the sound is 170 Hz, what is the wavelength?
  • Step 1: Identify the speed of sound in air, which is given as 340 m/s.
  • Step 2: Identify the frequency of the sound wave, which is given as 170 Hz.
  • Step 3: Use the formula for wavelength, which is Wavelength (λ) = Speed (v) / Frequency (f).
  • Step 4: Substitute the values into the formula: λ = 340 m/s / 170 Hz.
  • Step 5: Perform the division: 340 divided by 170 equals 2.
  • Step 6: Conclude that the wavelength is 2 meters.
  • Wave Properties – Understanding the relationship between speed, frequency, and wavelength of sound waves.
  • Formula Application – Applying the formula for wavelength (λ = v/f) correctly to solve for wavelength.
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