Question

Air separated from the atmosphere by a column of mercury of length h = 15 cm is present in a narrow cylindrical two-soldered at one end. When the tube is placed horizontally the air occupies a volume V₁ = 240 mm³. When it is set vertically with its open end upwards the volume of the air is V₂ = 200 mm³. The atmospheric pressure during the experiment is 7n cm of Hg where n is a single digit number. n will be ______.

विकल्प

• 1.00

• 2.00

• 5.00

• 6.00

Answer 1

Air separated from the atmosphere by a column of mercury of length h = 15 cm is present in a narrow cylindrical two-soldered at one end. When the tube is placed horizontally the air occupies a volume V₁ = 240 mm³. When it is set vertically with its open end upwards the volume of the air is V₂ = 200 mm³. The atmospheric pressure during the experiment is 7n cm of Hg where n is a single digit number. n will be 5.00.

Explanation:

P = `(hV_2)/(V_1 - V_2)`

n = 5