They are acoustic, inside is a diaphram that vibrates and amplifies sound passing it through the hollow tubes.
The function of the tubing in a stethoscope is to magnify the sound waves by making them narrow enough to be heard at an accurate timing through the ear canal.
A microphone is an instrument used to capture and magnify sound by converting sound waves into electrical signals.
The doctor used his stethoscope to listen to the sound of your heatbeat
vibrations of sound
it is based on refraction of sound
because of science
The instrument used to magnify sound is called a "microphone." It converts sound waves into electrical signals, which can then be amplified for various applications, such as recording or broadcasting. Other devices, like amplifiers and speakers, can also enhance sound levels but do not directly magnify sound in the same way a microphone does.
A microphone.
No, the sound is bouncing not following a straight line.
Parabolic sound reflectors, Speaking tubes and Stethoscope
A stethoscope.
A stethoscope consists of two equal-length tubes of air, physicallyjoined, which conduct sound waves to the examiner's ears.