Which of the following do waves transfer

1 - Matter

2 - Energy

3 - Matter and Energy

4 - the medium

The correct answer is : 2 - Energy.

Explanation:

Waves are produced due to vibration or movement of molecules about their mean position in response to any disturbance generated on them. The disturbance transmits energy into the stationary molecules present in a medium. After taking up this energy the stationary molecules begin to vibrate about their mean position, hits the molecules next to it and transmit its energy to them. This process continues and eventually the energy gets transmitted through all the stationary molecules present in medium resulting in the generation of a wave. However, waves does not always require a medium to travel, but vibration or oscillation is necessary. Based on this two types of waves are: Electromagnetic Waves (Light) : Here the electric and magnetic fields oscillates with respect to each other and generates a wave. Mechanical Waves (Sound) : It requires a medium to travel and the waves moves by episodes of compressions and rarefactions. Based on direction of vibration, waves are of two types: Longitudinal waves - Vibration occurs in a direction that is parallel to the direction of motion of the wave. Transverse waves - Vibration occurs in a direction that is perpendicular to the direction of motion of the wave.