:Advantages: The reflection of sound is used in many devices as the megaphones , the horns , the musical instruments like the trumpet , the shehnais , etc , The ceilings of the cinema halls and the auditoriums are curved so that the sound after multiple reflection reaches all parts of the hall .
https://www.youtube.com/watch?v=3lgpcKW6tw4
What are the uses of multiple reflection?
Uses of multiple reflections of sound are:
- Sound producing devices that uses a conical shape like megaphones to increase the intensity of sound waves in particular directions.
- Stethoscope: Sound undergoes multiple reflections in the wires of the stethoscope.
What are the advantages and disadvantages of echoes?
Echoes can be useful or a nuisance. In a concert hall echoes can ruin a performance if the walls and ceiling are not properly designed. If the walls are too hard or too flat they make good reflecting surfaces for the sound waves. Echoes can be used to give vital information.
What are the uses of multiple reflection of sound class 9?
Use of multiple reflection of sound:
In measuring the depth of sea/ocean. For the detection of the position of any objects, such as shipwrecks, sea rocks, hidden ice-berg in the sea and ocean. Investigating any problem inside the human body.
What are advantages and disadvantages of reverberation?
When a sound is produced in a big hall, its wave reflects from the walls and travel back and forth. Due to this, energy does not reduce and the sound persists. Small amount of reverberation for lesser time helps in adding volume to the programmers. Too much reverberation confuses the programmers and must be reduced.
How are multiple reflections helpful to doctors and engineers?
In the stethoscope the sound of the patient’s heart beat reaches the doctor’s ears by multiple reflections and by amplifying sound.Moreover, for the engineers.
What is multiple reflection of light?
Multiple reflection of light is the reflection of light back and forth several times between reflecting surfaces. If a reflected light ray is reflected again on being incident on another surface, it is termed multiple reflections. Multiple reflections are used in periscopes.
What are the advantages and disadvantages of the reflection of sound in everyday life?
1. When sound get reflected for multiple times a phenomenon of reverberation is taken place. 2. Because of this,reflected sound get mixed up and a continuous sound of large loudness and less clearness is produced.
Which remedies should you use to reduce the echo in Auditorium?
remedies to be used to reduce the echo in auditorium are:
- carpets can be put on the floor to absorb the sound.
- heavy curtains are put on doors and windows to absorb sound.
- panels made out of sound absorbing materials are put on the walls and ceilings.
What should you apply to the echo sounder reading to determine depth of water?
The time interval between emission and return of a pulse is recorded, which is used to determine the depth of water along with the speed of sound in water at the time.
What is multiple reflection of sound called?
The phenomenon of multiple reflection of sound wave with decreasing energy is called reverberation.
What refers to the multiple reflections or echoes in a certain place?
Reverberation is a result of multiple REFLECTIONs. A SOUND WAVE in an enclosed or semi-enclosed environment will be broken up as it is bounced back and forth among the reflecting surfaces.Although it may not be realized consciously, reverberation is one of many cues used by a listener for orientation in a given space.
What are multiple uses of sound?
Reflection of sound is used to measure the distance and speed of underwater objects. This method is known as SONAR. The working of a stethoscope is also based on the reflection of sound. In a stethoscope, the sound of the patient’s heartbeat reaches the doctor’s ear by multiple reflections of sound.
What is multiple reflection and reverberation?
Multiple reflection: It means that sound is reflected more than once. Reverberation: The repeated reflection that results in this persistence of sound is called reverberation.
What are the advantages of reverberation?
Advantages of Reverberation
Reverberations do wonders when it comes to musical symphonies and orchestra halls, when the right amount of reverberation is present, the sound quality gets enhanced drastically. This is the reason why sound engineers are appointed during the construction of these halls.
What is the significance of reverberation?
Reverberation is thus a collection of many reflections of sound. Reverberation time is a measure of the time required for reflecting sound to “fade away” in an enclosed area after the source of the sound has stopped. It is important in defining how a room will respond to acoustic sound.
How is sound useful to doctors?
Sound waves can assess potentially dangerous atherosclerotic plaques, monitor chronic liver disease, and help deliver drugs to particular locations within the body. Ultrasound devices can image tumors deep inside the body, and acoustical energy can be focused upon those tumors as a way of treating cancer.
What is multiple reflection of mirror?
Multiple reflection of light is the reflection of light back and forth through reflecting surfaces several times. When the reflection of a reflected light ray on another object is mirrored again, it is called multiple reflections.
How does multiple reflection happen?
When two mirrors are parallel to each other, the number of reflections is infinite. Placing one mirror at a slight angle causes the reflections to curve. Using more than two mirrors increases the number of reflections, but what you see depends on where you stand.
What is multiple reflection Class 8 science?
Multiple reflections
Place an object between the mirrors. You can see several images in both the mirror. This is because the image formed by one mirror act as the object for the second mirror. This phenomenon is referred to as multiple reflections.
What is the advantage of reflection of sound?
:Advantages: The reflection of sound is used in many devices as the megaphones , the horns , the musical instruments like the trumpet , the shehnais , etc , The ceilings of the cinema halls and the auditoriums are curved so that the sound after multiple reflection reaches all parts of the hall .
Contents