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Give reasons. (a) A tabla player tightens or loosens the bands tying down the membrane. (b) We hear thunder long after we have seen the flash of lightning. (c) A surface is necessary for an echo to be heard. |
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Answer» Give reasons. (a) A tabla player tightens or loosens the bands tying down the membrane. (b) We hear thunder long after we have seen the flash of lightning. (c) A surface is necessary for an echo to be heard. |
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