A wave has frequency 50 Hz and wavelength 6 m. What is its speed?
Answer and explanation
Correct answer: B. 300 m/s, because v = fλ
- Step 1: Use v = fλ. Step 2. v = 50 · 6 = 300 m/s. Answer: 300 m/s. Why not the others: Dividing or adding gives wrong quantities.
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