The Stethoscope used by a medical practitioner is based on the phenomenon of :
multiple reflection of sound waves.
scattering of sound waves.
refraction of sound waves.
none of the above.
Answer is Right!
Answer is Wrong!
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.