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RRB Junior Engineer / DMS / CMA 2019 · Question 757 of 3719

The frequency of a sound wave is 50 Hz and its wavelength is 4 m. What is the speed of the sound wave?

  1. A200 m/sCorrect
  2. B80 m/s
  3. C400 m/s
  4. D100 m/s

Answer: A. 200 m/s

Official answer key verified. Detailed explanation coming soon.

Source: RRB JE 2019 CBT-1 (23-May-2019 Shift 2) — cracku.in solved paper with answer key · reliable-secondary

← Q756View full paper (3719 questions)Q758 →

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