Give two uses of multiple reflection of sound.
Answers
Answer:
Stethoscope is used to hear the sounds of internal organs of a patient; for diagnostic purposes. It works on the laws of reflection of sound.
Sound board is used to send the sound towards audience in big hall or auditorium. This works on the basis of laws of reflection of sound waves.
The sound which we hear after reflection is called echo or echo of sound. One can hear the echo by shouting loudly in a big hall. After shouting loudly, the same sound reaches the ears after reflecting from the surface of the wall. Echo of sound can be heard by producing sound at place surrounded by hills or big buildings.
Thus, repetition of sound because of multiple reflection of sound wave is called echo.
Answer:
The uses of multiple reflection of sound is
- from this sound can travel more distance
- it can be in other fields like
- in army, in Ocean etc