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

Answers (1)

Two practical applications of sound waves are :

(i) In stethoscope, the sound of the patient's heartbeat reaches the doctor's ears by multiple reflections throughout the pipe of the stethoscope of sound.

(ii) Horns, megaphones or loudhailers are designed to send sound in a particular direction without spreading it in all directions. There is a conical opening which reflects the sound waves and guides most of the sound waves from the source.

 

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