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Phenomenon and Application of Reflection of Sound Waves

10.3  Phenomenon and Application of Reflection of Sound Waves
   

Phenomenon of Reflection of Sound Waves

  • An echo is produced when sound waves are reflected from a hard surface. The echo sounds the same as the original sound but takes some time to reach the listener's ears
  • An echo can be heard in empty rooms, caves and tunnels

Application of Reflection of Sound Waves

  • The reflection of different sound waves can be produced when sound waves hit different surfaces
  • Example : Ultrasound - can be heard by animals such as bats which use it for navigation

Limitations of Hearing

  • The limited sense of hearing in humans make us unable to hear soft sounds and sounds from a distance
Devices to overcome human limitations of hearing
  1. Stethoscope
  2. Megaphone
  3. Hearing aids
The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of Pandai.

Phenomenon and Application of Reflection of Sound Waves

10.3  Phenomenon and Application of Reflection of Sound Waves
   

Phenomenon of Reflection of Sound Waves

  • An echo is produced when sound waves are reflected from a hard surface. The echo sounds the same as the original sound but takes some time to reach the listener's ears
  • An echo can be heard in empty rooms, caves and tunnels

Application of Reflection of Sound Waves

  • The reflection of different sound waves can be produced when sound waves hit different surfaces
  • Example : Ultrasound - can be heard by animals such as bats which use it for navigation

Limitations of Hearing

  • The limited sense of hearing in humans make us unable to hear soft sounds and sounds from a distance
Devices to overcome human limitations of hearing
  1. Stethoscope
  2. Megaphone
  3. Hearing aids
The views expressed in the notes here are those of the contributor and don’t necessarily represent the views of Pandai.
Chapter : Sound Waves
Topic : Phenomena and Application of Reflection of Sound Waves
Form 2 Science
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