A wave has frequency 50 Hz and wavelength 2 m. What is its speed?
Answer and explanation
Correct answer: C. 100 m/s
- Step 1: v = fλ. Step 2. 50 × 2 = 100. Answer: 100 m/s. Why not the others: 25 divides, 52 adds and 0.04 inverts.
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