2004 2003 2002 2001 2000
  (Sub-Topics) Screening (%) Mains(%)
  1. Types of wave 2.85 0
  2. Wave Equation 2.85 0
  3. Echo 0 0
  4. Velocity of Sound 0 5
  5. Interference 0 0
  6. Beats 0 0
  7. Stationary waves 0 0
  8. Lissajous figure 0 0
  9. Doppler’s Effect 0 5
  Total 5.7 10