A tuning fork produces a sound wave of frequency 440 Hz. If the speed of sound i

Practice Questions

Q1
A tuning fork produces a sound wave of frequency 440 Hz. If the speed of sound in air is 340 m/s, what is the wavelength of the sound wave?
  1. 0.77 m
  2. 0.85 m
  3. 0.90 m
  4. 1.00 m

Questions & Step-by-Step Solutions

A tuning fork produces a sound wave of frequency 440 Hz. If the speed of sound in air is 340 m/s, what is the wavelength of the sound wave?
Correct Answer: 0.77 m
  • Step 1: Identify the frequency of the sound wave. In this case, the frequency (f) is 440 Hz.
  • Step 2: Identify the speed of sound in air. Here, the speed (v) is 340 m/s.
  • Step 3: Use the formula for wavelength (λ), which is λ = v / f.
  • Step 4: Substitute the values into the formula: λ = 340 m/s / 440 Hz.
  • Step 5: Perform the division: 340 divided by 440 equals approximately 0.7727 m.
  • Step 6: Round the result to two decimal places, which gives us approximately 0.77 m.
  • Wave Properties – Understanding the relationship between speed, frequency, and wavelength of sound waves.
  • Formula Application – Applying the formula λ = v/f correctly to calculate wavelength.
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