Water waves are

In a stretched string,which type of waves can exist?

The waves in which the particles of the medium vibrate in a direction perpendicular to the direction of wave motion are known as:

What is called a transverse wave? And what is called a longitudinal wave?

The figure shows wave fronts in still water moving in the direction of the arrow towards the interface $PQ$ between a shallow region and a deep (denser) region. Which of the lines shown may represent one of the wave fronts in the deep region?

Explain the types of waves based on the direction of oscillations of the particles of the medium.