Question

Collect the pictures about the applications of multiple reflections of sound and ultra sounds in daily life exhibit in your class room

Answer 1

The reflection of sound is used n working of devices such as :

• Megaphone and Horn bulb : A megaphone is also known as loudspeaker which is used to amplify and direct the voice of person who speaks into it.
• Horn Bulb  is a cone shaped wind instrument which is used in autos, bicycles for signalling.
• Stethoscope : Is a medical instrument used by doctors for listening to the sounds produced within human body.

• soundboard :Is a concave board which is placed behind the speaker in large halls so that speech can be heard easily .

Applications of ultrasound :

• Used in industry for detecting flaws in metal blocks
• Used in industry to clean hard to reach parts of objects such as spirals tubes.
• used in medicinal field to break kidney stones into grains.
• Is used in Sonar apparatus to measure the depth of sea.
• ultrasound scans are used to monitor the development of fetus inside the mothers uterus.

Answer 2

Answer:

uses of multiple reflection of sound one a megaphone and a horn megaphones Orange musical instruments such as trumpet Shehnai and loudspeakers all are designed to send song in a particular direction without spreading it in all direction in this is comments a tube followed by a chronicle opening reflect sound successfully to guide most of this sound