When a vibrating object moves forward it pushes and compresses air in front of it , creating a region of high pressure is compression region .

Compression is the region of high pressure

Both A&B

None of the above

Yes

No

Don't know

None of these

Air

Water

Steel

All of the above

No

Yes

Don't know

In which the particles of medium moves in a direction parallel to the direction of propagation of disturbance.

Particles do not move from one form to another

The particles oscillate back and forth about their rest position

All the above

Simple pendulum

vibrating Spring

Rest position of pendulum

Both A& B

Particles oscillate up and down about their mean position / original position

Individual particles of a medium move perpendicular to the direction of wave propogation

All of the above

Frequency

Speed

Amplitude

All of the above

Particles are crowded or in large amount

Represented by upper portion of the curve

Density is high

Pressure is high

Upper part peak

Lower part peak

None of these

Upper part peak

Lower part peak

None of these