A wave has a frequency of and a wavelength of . What is its speed (in m/s)?
Answer and explanation
Correct answer: C. 1000
**
- Step 1: Use the standard wave speed formula .
- Step 2: Setting and , we get .
- Step 3: The calculated speed is .
Answer
1000.
Why not the others: '502' adds frequency and wavelength () instead of multiplying; '250' divides frequency by wavelength () instead of multiplying; '2000' multiplies by an extra factor of .
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