CONCEPT IN SOUND

1. WAVE AND SOUND

WAVE:Way is a disturbance,which can be transfer from one place to another place to the another place due to repeated periodic motion of the particles of the medium about their mean position.
LONGITUDINAL WAVE +TRANSVERSE WAVE=ripple wave

• Wave produced in a string=1 dimensional
• Wave produced in water=2 dimensional
• Sound and light wave=3dimensional

Wave are two types :

1. Mechanical wave
   
2. Non mechanical wave

• For the propagation mechanical wave, elasticity as well as density of medium is required that's why mechanical wave is also known as elastic wave.

• In a non -mechanical wave,vibration takes place in both electric field as in magnetic field that's why non-mechanical wave is also known as electromagnetic wave.

• Medium is required for the propagation of mechanical wave. For example wave produce in a string ,spring,sonometer wire, tuning fork and sound wave etc.
• There is no requirement of medium for the propagation of non-mechanical wave.Example:light,X-rays, Gama rays, radiation and radio waves.

1. MECHANICAL WAVE:

Mechanical wave are two types:

• Transverse wave
  
• Longitudinal wave

If wave is longitudinal,it must be a mechanical wave and if wave is mechanical then

• It may be longitudinal wave.
• It may be transverse wave.
• It may or may not be longitudinal.
• It may or may not be transverse.

1. NON-MECHANICAL WAVE:

All non -mechanical waves are only transverse in nature
If wave is non-mechanical then must be a transverse wave and wave is non-mechanical wave then

• It may be mechanical wave .
• It may be non-mechanical wave.
• It may or may not be mechanical wave.
• It may or may not be non-mechanical waves.