What is the height of a vacuum of Toricelli if it is examined with a 1m long canopy at normal atmospheric pressure ?

What is the height of a vacuum of Toricelli if it is examined with a 1m long canopy at normal atmospheric pressure ?
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Answer : At normal atmospheric pressure , if Toricelli is examined with a 1m long canopy, the vacuum height of Toricelli will be 24 cm .
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