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RRB Junior Engineer / DMS / CMA 2019 · Question 3372 of 3719

The frequency of a sound wave is 200 Hz and its wavelength is 2 m. What is the speed of the sound wave?

  1. A400 m sCorrect
  2. B200 m s
  3. C80 m s
  4. D100 m s

Answer: A. 400 m s

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (27-May-2019 Shift 3) — official response-sheet export via freshersnow (answer key) · reliable-secondary

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