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<span>B.Extrinsic motivation </span>
Answer:
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Sound created in a big hall will persist by repeated reflection from the walls until it is reduced to a value where it is no longer audible. The repeated reflection that results in this persistence of sound is called reverberation. In an auditorium or big hall excessive reverberation is highly undesirable
Explanation:
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Answer:
D
Explanation:
Insulator is like rubber, it cant physically hold heat well
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