A vacuum of 712 mm was obtained with the barometer reading 753 mm of mercury. The corrected vacuum to a standard barometer of 760 would be

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Q. A vacuum of 712 mm was obtained with the barometer reading 753 mm of mercury. The corrected vacuum to a standard barometer of 760 would be

(A) 719 mm Hg
(B) 753 mm Hg
(C) 706 mm Hg
(D) 760 mm Hg

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✅ Correct Answer: (A) 719 mm Hg

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