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If a wave has a frequency of 50 Hz and a wavelength of 2 m, what is its speed? (

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Question: If a wave has a frequency of 50 Hz and a wavelength of 2 m, what is its speed? (2018)

Options:

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

Correct Answer: 100 m/s

Solution: 

Wave speed = frequency × wavelength = 50 Hz × 2 m = 100 m/s.

If a wave has a frequency of 50 Hz and a wavelength of 2 m, what is its speed? (

Practice Questions

Q1
If a wave has a frequency of 50 Hz and a wavelength of 2 m, what is its speed? (2018)
  1. 100 m/s
  2. 50 m/s
  3. 25 m/s
  4. 200 m/s

Questions & Step-by-Step Solutions

If a wave has a frequency of 50 Hz and a wavelength of 2 m, what is its speed? (2018)
  • Step 1: Understand the formula for wave speed, which is: Wave speed = frequency × wavelength.
  • Step 2: Identify the frequency of the wave, which is given as 50 Hz.
  • Step 3: Identify the wavelength of the wave, which is given as 2 m.
  • Step 4: Plug the values into the formula: Wave speed = 50 Hz × 2 m.
  • Step 5: Calculate the wave speed: 50 × 2 = 100.
  • Step 6: Write the final answer: The speed of the wave is 100 m/s.
  • Wave Speed Calculation – The speed of a wave can be calculated using the formula: wave speed = frequency × wavelength.
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