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1.013 x 105 Pa = 13.6 x 103 kg/m3 (9.8) (h) h = 0.760 m = 760 mm. Okay we have proved that the length of mercury column should actually be 760 mm of Hg. The important points here are that the height h in the above diagram will remains unchanged if: the glass tube is lifted up from the dish . ................
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