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MHT CET 2021 (23 Sep, Shift 2) · Wave Basics & Properties of Sound

Wave Basics & Properties of Sound question from MHT CET 2021 (23 Sep, Shift 2)

Q26MHT CET 2021 · 23 SEP · SHIFT 2Easy

Wave Basics & Properties of Sound

The frequency of a tuning fork is 220 Hz220\text{ Hz} and the velocity of sound in air is 330 m/s330\text{ m/s}. When the tuning fork completes 80 vibrations, the distance travelled by the sound wave is

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Answer: (a)

  1. Distance =Nλ=Nvn= N\lambda = N\frac{v}{n}.
  2. λ=330220=1.5\lambda = \frac{330}{220} = 1.5 m
  3. Distance =80×1.5=120= 80 \times 1.5 = 120 m
  4. So the answer is (a) 120 m.
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