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JIPMER2019PhysicsWaves and Sound

A stationary wave equation is given as y=20 (20 x) (1000 t) . What will be the speed of stationary wave?

Options

  1. A20 ~m / s
  2. B50 ~m / s
  3. C2 ~cm / s
  4. Dnot defined

Correct answer

D. not defined

Step-by-step solution

In stationary waves, the positions of nodes and antinodes do not change with time, hence speed of stationary wave is not defined.

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