Question

In a stethoscope, sound of heart beats travel through stethoscope tube

• A. By bending along the tube
• B. In a straight line
• C. Undergoing multiple reflections
• D. All of the above

Answer 1

The correct option is D All of the above

in stethoscope tube sound travels bending along the tube and also runs in straight lines with multiple reflections with its wall .

so the answer is D.