Gujarat BoardEnglish MediumSTD 9ScienceSound1 Mark
MCQ
Reverberation of sound is due to:
A
Multiple refractions
✓
Multiple reflections
C
Multiple diffractions
D
Multiple polarization
✓
Answer
Correct option: B.
Multiple reflections
Reverberation is the phenomenon of persistence of sound after it is stopped by surfaces such as furniture, people, walls, etc. within a closed space, causing multiple reflections. These reflections build up with each reflection and persist for a finite time and then decay gradually as they are slowly absorbed by the objects in the space enclosed.
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