A vertical tube of length 100 cm contains a mercury pallet of length 5 cm as shown in the figure. The length of the tube above mercury pallet if the tube is inverted is nearly: (atmospheric pressure = 75 cm Hg of Hg)

Question

A vertical tube of length 100 cm contains a mercury pallet of length 5 cm as shown in the figure. The length of the tube above mercury pallet if the tube is inverted is nearly: (atmospheric pressure = 75 cm Hg of Hg), 56 cm, 57 cm, 60 cm, 50 cm

MARKS App · Accepted Answer

P 1 × 50 = P 2 × x ⇒ x = 50 P 1 P 2 P 1 = 80 c m of Hg P 2 = 70 c m of Hg ∴ x = 50 × 80 70 = 57.12 c m ≈ 57 c m

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