Question

The following figure shows a transverse wave travelling along the x-axis.

1. Determine the wave length and the amplitude of the wave. 
2. If the time taken by the wave to move from O to A is 0.04 seconds, determine the frequency and the speed of the wave

Answer 1

1.  
   1. Wavelength = 4cm 
   2. Amplitude = 2cm
2. O to A = 9cm containing 2 ¼ waves
   Time = 0.045 
                 2 ¼
   f = ¹/_T
   =     1         
      0.04s/2 ¼
   f = 56.25Hz. 
   v = f^  
      = 56.25 x 0.04
   =2.25ms⁻¹