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COMEDK2020PhysicsWaves and Sound

The equation of a progressive wave can be given by y=15 (660 t-0.02 x) cm . The frequency of the wave is

Options

  1. A330 ~Hz
  2. B342 ~Hz
  3. C365 ~Hz
  4. D660 ~Hz

Correct answer

A. 330 ~Hz

Step-by-step solution

Given, equation of progressive wave, y=15 (660 t-0.02 x) Comparing this equation with standard equation of progressive wave as y=A ( 2 T , t- 2 , x ) We get, aligned 2 T &=660 T &= 2 660 T &= 1 330 Frequency of the wave, v &= 1 T &= 1 1 / 330 =330 ~Hz aligned

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