Question

Which of these pictures do not show the way of sound vibrations travel.

Answer 1

Hint : Sound travels in the form of the mechanical waves which is the disturbance which moves and transfers energy from one place to another through a medium which can be a series of the interconnected and the interactive particles. In Sound, the disturbance is nothing but just the vibrating object.

Complete Step By Step Answer:
Let us consider an example of the bell in the temple. When the bell rings it vibrates and produces the sound which means the bell itself bends or loosens itself inwards and outwards very rapidly.
You must have observed the humming sound after the bell rang continuously for some time due to the air particles which push against the other adjacent air particles and so on. The pattern of push and pull creates the sound wave.
Here, the vibrating bell is the original disturbance and the air particles are just the medium.
Sound waves travel in all the directions outwards and form a sound source which travels in the form waves of compressions and rarefactions (or an expansion) as it successively passes through the medium.
Since, the sound wave travels in all the four directions but it is not visible to our naked eyes.
Hence, from the given multiple choices – the option D is the correct answer.

Note :
We cannot always see the sound waves, since the vibrations take place so fast and therefore it is very difficult to see vibrations. But it can be observed by using a tuning fork. Refer to the concept of sound waves thoroughly.