Question

In the formation of ripples in a pond of water, the waves are formed due to
(A) The circular motion of the water particles centered at a point.
(B) The vibratory motion of the water particles about their mean position.
(C)The vibratory motion of the water particles about their extreme positions.
(D)The random motion of the water particles.

Answer 1

Hint : In order to solve this question, we are going to analyze the phenomenon behind the formation of waves in a pond and the movement of the water molecules. The phenomenon behind describes the water molecules that are in motion, the kind of the motion and their oscillations.

Complete Step By Step Answer:
The ripples can be formed in a pond of water by throwing a stone in it. We can observe a proper wave pattern in the water. These waves originate from the center, get outwards and end at the quietude of the river. The phenomenon behind the formation of the waves can be traced to the vibratory motion. In this type of vibratory motion, we observe every particle in the water of the pond vibrating about their mean positions. Hence, the water molecules vibrate about their mean positions.
Thus, option (B) is the correct answer.

Note :
In the formation of the waves in a pond, the waves that are due to the vibratory motion, the individual waves travel at different speeds, the long waves go faster while the short waves go slower as compared. The waves formed are the transverse waves, because the molecules of water move up and down in vertical directions.