The Stethoscope used by a medical practitioner is based on the phenomenon of :
[amp_mcq option1=”multiple reflection of sound waves.” option2=”scattering of sound waves.” option3=”refraction of sound waves.” option4=”none of the above.” correct=”option1″]
This question was previously asked in
UPSC CAPF – 2010
– These sound waves travel through the hollow tube. As they travel, they undergo multiple reflections off the inner walls of the tube.
– These repeated reflections guide the sound waves towards the earpieces, concentrating the sound and making it audible to the medical practitioner.