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The image shows reflection of sound by a wall What change would cause reverberation of the sound?
Give reasons for the following:
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Read the following information and answer the questions based on information and related studied concepts. Lata, while visiting London, attended an opera performance. Its architecture and furnishings appealed her. The draperies, cushions, and curtains on the curved ceiling were all arranged correctly. Behind the stage, she noticed a soundboard. She was now curious as to whether each of these decorations was placed for the benefit of the hall's aesthetics or for a scientific cause.