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A wave has a frequency of 50 Hz and a speed of 340 m/s. What is its wavelength?

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Question: A wave has a frequency of 50 Hz and a speed of 340 m/s. What is its wavelength? (2021)

Options:

  1. 6.8 m
  2. 7.0 m
  3. 7.5 m
  4. 8.0 m

Correct Answer: 6.8 m

Exam Year: 2021

Solution: 

Wavelength λ is given by λ = v/f. Thus, λ = 340 m/s / 50 Hz = 6.8 m.

A wave has a frequency of 50 Hz and a speed of 340 m/s. What is its wavelength?

Practice Questions

Q1
A wave has a frequency of 50 Hz and a speed of 340 m/s. What is its wavelength? (2021)
  1. 6.8 m
  2. 7.0 m
  3. 7.5 m
  4. 8.0 m

Questions & Step-by-Step Solutions

A wave has a frequency of 50 Hz and a speed of 340 m/s. What is its wavelength? (2021)
  • Step 1: Identify the formula for wavelength, which is λ = v / f.
  • Step 2: Identify the values given in the question: speed (v) = 340 m/s and frequency (f) = 50 Hz.
  • Step 3: Substitute the values into the formula: λ = 340 m/s / 50 Hz.
  • Step 4: Perform the division: 340 divided by 50 equals 6.8.
  • Step 5: Conclude that the wavelength (λ) is 6.8 meters.
  • Wave Properties – Understanding the relationship between wave speed, frequency, and wavelength.
  • Formula Application – Applying the formula λ = v/f to calculate wavelength from given speed and frequency.
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