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What is the frequency of a wave if its wavelength is 2 meters and its speed is 3

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Question: What is the frequency of a wave if its wavelength is 2 meters and its speed is 340 m/s? (2021)

Options:

  1. 170 Hz
  2. 340 Hz
  3. 68 Hz
  4. 85 Hz

Correct Answer: 170 Hz

Exam Year: 2021

Solution: 

Frequency (f) can be calculated using the formula f = v/λ. Here, f = 340 m/s / 2 m = 170 Hz.

What is the frequency of a wave if its wavelength is 2 meters and its speed is 3

Practice Questions

Q1
What is the frequency of a wave if its wavelength is 2 meters and its speed is 340 m/s? (2021)
  1. 170 Hz
  2. 340 Hz
  3. 68 Hz
  4. 85 Hz

Questions & Step-by-Step Solutions

What is the frequency of a wave if its wavelength is 2 meters and its speed is 340 m/s? (2021)
  • Step 1: Identify the given values. The wavelength (λ) is 2 meters and the speed (v) is 340 meters per second.
  • Step 2: Write down the formula for frequency (f), which is f = v / λ.
  • Step 3: Substitute the values into the formula. Replace v with 340 m/s and λ with 2 m.
  • Step 4: Calculate the frequency. Divide 340 by 2 to get 170.
  • Step 5: State the final answer. The frequency of the wave is 170 Hz.
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