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NEET2008PhysicsWaves and SoundActual

The wave described by y=0.25 (10 x-2 t) , where x and y are in meters and t in seconds, is a wave travelling along the

Options

  1. A-ve x direction with amplitude 0.25 ~m and wavelength =0.2 ~m
  2. B-ve x direction with frequency 1 ~Hz
  3. C+ve x direction with frequency Hz and wavelength =0.2 ~m
  4. D+ve x direction with frequency 1 ~Hz and wavelength =0.2 ~m

Correct answer

D. +ve x direction with frequency 1 ~Hz and wavelength =0.2 ~m

Step-by-step solution

Give, y=0.25 (10 x-2 t) Comparing with y=A ( 2 x-2 n t ) , we get, aligned & =0.2 ~m & n=1 ~Hz aligned -ve sign indicates, the x direction.

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