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Uses of multiple reflection of
sound presentation by
Yashwanth. D
Uses of multiple reflection of sound
● Megaphones Or loudhailers, horns,
musical instrument such as trumpets and
shehanais, are all designed to send sound
in a particular directions without spreading
it in all directions
● In these instruments, a tube followed by a
conical opening reflects sounds successively
to guide most of the sound waves from the
source in the forward direction towards the
audience.
● Stethoscope is a medical instrument useful
for listening to sound produced within the
body, mainly in the heart Or lungs.
● In stethoscope the sound of the patient’s
heartbeat reaches the doctors ears by
multiple reflection of sound.
STETHOSCOPE
● Generally the ceiling of concert halls, conference
halls and cinema halls are curved so that sound
after reflection reaches all corners of the halls.
● Sometimes a curved sound board may be placed
behind the stage so that the sound, board
spreads evenly across the width of the hall
Thank you

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Untitled presentation.pptx

  • 1. Uses of multiple reflection of sound presentation by Yashwanth. D
  • 2. Uses of multiple reflection of sound ● Megaphones Or loudhailers, horns, musical instrument such as trumpets and shehanais, are all designed to send sound in a particular directions without spreading it in all directions
  • 3.
  • 4. ● In these instruments, a tube followed by a conical opening reflects sounds successively to guide most of the sound waves from the source in the forward direction towards the audience.
  • 5. ● Stethoscope is a medical instrument useful for listening to sound produced within the body, mainly in the heart Or lungs. ● In stethoscope the sound of the patient’s heartbeat reaches the doctors ears by multiple reflection of sound.
  • 7. ● Generally the ceiling of concert halls, conference halls and cinema halls are curved so that sound after reflection reaches all corners of the halls. ● Sometimes a curved sound board may be placed behind the stage so that the sound, board spreads evenly across the width of the hall
  • 8.