Chemistry, 09.03.2020 07:27 magmoo3779

Sound is not heard clearly in big halls. Why?
Sometimes, sodium chloride solution is poured in a permutit vessel. Why?
If you are kept blind folded in a room, how can you find out whether the room is occupied by producing sound?
plz answer all the questions

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Sound is not heard clearly in big halls. Why?
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Sound is not heard clearly in big halls. Why?Sometimes, sodium chloride solution is poured in a permutit vessel. Why?If you are kept blind folded in a room, how can you find out whether the room is occupied by producing sound?plz answer all the questions

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Another question on Chemistry

Sound is not heard clearly in big halls. Why?
Sometimes, sodium chloride solution is poured in a permutit vessel. Why?
If you are kept blind folded in a room, how can you find out whether the room is occupied by producing sound?
plz answer all the questions