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BITSAT2021PhysicsWaves and SoundActual

The displacement y of a particle in a medium can be expressed as, y=10⁻⁶ (100 t+20 x+ 4 ) m where t is in second and x in meter. The speed of the wave is

Options

  1. A20 ~m / s
  2. B5 ~m / s
  3. C2000 ~m / s
  4. D5 m / s

Correct answer

B. 5 ~m / s

Step-by-step solution

From equation given, array l =100 and k =20 v = k = 100 20 =5 ~m / s array

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