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A wave has frequency 256 Hz and wavelength 1.32 m. Its speed is

A256 m/s only
B337.92 m/s
C1.32 m/s only
D338000 m/s only
Answer & Solution
Correct answer: B. 337.92 m/s
1. Use V = f * wavelength. 2. V = 256 * 1.32. 3. = 337.92 m/s. 4. So the speed is 337.92 m/s. _Source: Selina Concise Physics Class 9, Ch 8 Sound (Mistral OCR'd PDF), section on numerical examples_
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