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A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?

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Question: A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?

Options:

  1. 25 m/s
  2. 50 m/s
  3. 100 m/s
  4. 75 m/s

Correct Answer: 50 m/s

Solution: 

Speed v = f × λ = 50 Hz × 2 m = 100 m/s.

A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?

Practice Questions

Q1
A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?
  1. 25 m/s
  2. 50 m/s
  3. 100 m/s
  4. 75 m/s

Questions & Step-by-Step Solutions

A wave has a frequency of 50 Hz and a wavelength of 2 m. What is its speed?
  • Step 1: Understand the formula for wave speed, which is Speed (v) = Frequency (f) × Wavelength (λ).
  • 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: v = 50 Hz × 2 m.
  • Step 5: Calculate the 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 v = f × λ, where v is speed, f is frequency, and λ is wavelength.
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