Question

Which instrument works on the basis of reflection of sound waves?

Answer 1

A sound is a mechanical wave that propagates through a medium as a vibration. It can spread through a solid, a liquid, or a gas as its medium. Solids travel the quickest, liquids are slower, and gases are the slowest.

Complete answer:
A reflection of sound occurs as sound waves bounce back from the surface of a solid or liquid. Many fascinating phenomena, such as Echoes and Reverberation, are caused by sound reflection. The reflection of sound, like the reflection of light, is governed by rules.

The laws that govern sound reflection are as follows:
-The incidence and the reflection angle are always the same.
-The incident, normal, and reflected sound waves all exist in the same plane.

A sound bounces back to its source as it reaches a hard surface. An echo is the term for this form of sound reflection. Soft surfaces absorb sound and silence it, while hard surfaces appear to reflect it. The sound wave will not be reflected if the frequency of the sound wave is low.

A stethoscope's operation is dependent on sound reflection. The sound of the patient's pulse enters the doctor's ear by several reflections of sound in a stethoscope. It is an acoustic medical instrument used for auscultation or listening to an animal's or person's internal sounds. It can be used to listen to heart, lung, and intestine sounds, as well as blood flow in arteries and veins.

So, a stethoscope is a device that detects sound waves by reflecting them.

Note: Keep in mind that the sound bounces off the medium's surface, which can be solid or liquid. The surface should be broad and either rough or polished for sound to be reflected.A sound is a form of energy, just like electricity, heat or light. Sound is one of the important senses of the human body.