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Waves question

2024 · Q188
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Waves question

2024 · Q188

NEETPhysicsWavesMCQ+4 / −1

The displacement of a travelling wave y=Csin⁡2πλy=C \sin \frac{2 \pi}{\lambda}y=Csinλ2π​ (at −x-x−x) where ttt is time, xxx is distance and λ\lambdaλ is the wavelength, all in S.I. units. Then the frequency of the wave is

  1. A
    2πλa\frac{2 \pi \lambda}{a}a2πλ​
  2. B
    2πaλ\frac{2 \pi a}{\lambda}λ2πa​
  3. C
    λa\frac{\lambda}{a}aλ​
  4. D
    aλ\frac{a}{\lambda}λa​
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