Physicsmedium · Past Paper
A stethoscope works on the principle of:
ARefraction of sound
BMultiple reflection of sound
CResonance
DAbsorption of sound
✓ Correct Answer: B — Multiple reflection of sound
A stethoscope channels sound from the chest to the ears through multiple reflections within the tube.
Share this question
More from Physics
- When we wind a watch, we store:
- Which of these devices operates based on the principle of electromagnetic induction?
- What is the peak voltage of a 220V AC supply? (Hint: V_peak = V_rms * √2)
- A concave mirror has a radius of curvature of 40 cm. To get an image twice the size of the object, the object distance should be:
- The instrument used to measure electric current in a circuit is called a/an: