Question

Question 12
Give two practical applications of reflection of sound waves.

Answer 1

Two practical applications of reflection of sound waves are:
(a) Reflection of sound is used to measure the distance and speed of underwater objects. This method is known as SONAR.
(b) Working of a stethoscope is also based on reflection of sound. In a stethoscope, the sound of the patient's heartbeat reaches the doctor's ear by multiple reflections of sound.