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If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (

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Question: If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (2019)

Options:

  1. 100 m/s
  2. 200 m/s
  3. 50 m/s
  4. 25 m/s

Correct Answer: 100 m/s

Exam Year: 2019

Solution: 

The speed of a wave can be calculated using the formula v = f × λ. Here, v = 50 Hz × 4 m = 200 m/s.

If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (

Practice Questions

Q1
If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (2019)
  1. 100 m/s
  2. 200 m/s
  3. 50 m/s
  4. 25 m/s

Questions & Step-by-Step Solutions

If a wave has a frequency of 50 Hz and a wavelength of 4 m, what is its speed? (2019)
  • Step 1: Identify the formula for wave speed, which is v = f × λ.
  • Step 2: Note the given frequency (f) of the wave, which is 50 Hz.
  • Step 3: Note the given wavelength (λ) of the wave, which is 4 m.
  • Step 4: Substitute the values into the formula: v = 50 Hz × 4 m.
  • Step 5: Calculate the speed: v = 200 m/s.
  • Wave Speed Calculation – The speed of a wave is determined by the product of its frequency and wavelength, represented by the formula v = f × λ.
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