A wave has a frequency of and a wavelength of . What is its speed (in m/s)?

Answer and explanation

Correct answer: B. 300

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  1. Step 1: Apply the fundamental wave relationship .
  2. Step 2: Insert and : .
  3. Step 3: Multiplying the values gives .
Answer
300.
Why not the others: '100/3' divides frequency by wavelength () instead of multiplying; '103' adds frequency and wavelength () instead of multiplying; '600' multiplies by an extra factor of .

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