3B20.XX - LONGITUDINAL PULSES AND WAVES

3B22.XX - STANDING WAVES

3B25.XX - IMPEDANCE AND DISPERSION

3B27.XX - COMPOUND WAVES

3B30.XX - WAVE PROPERTIES OF SOUND

3B33.XX - PHASE AND GROUP VELOCITY

3B35.XX - REFLECTION AND REFRACTION (Sound)

3B39.XX - TRANSFER OF ENERGY IN WAVES

3B40.XX - DOPPLER EFFECT

3B45.XX - SHOCK WAVES

3B50.XX - INTERFERENCE AND DIFFRACTION

3B55.XX - INTERFERENCE OF SOUND

3B60.XX - BEATS

3B70.XX - COUPLED RESONATORS