A U tube of uniform inner cross-section contains mercury in both sides of its arms. An ethyl alcohol column of length 12 cm is introduced into one of its arms. Water of length 10 cm is poured into the other arm. Find density of ethanol.

Question

A U tube of uniform inner cross-section contains mercury in both sides of its arms. An ethyl alcohol column of length 12 cm is introduced into one of its arms. Water of length 10 cm is poured into the other arm. Find density of ethanol. (A) 0.52 g/cm3 (B) 0.83 g/cm3 (C) 1.83 g/cm3 (D) 0.72 g/cm3

Tardigrade Admin · Accepted Answer

Solution P0+ r h ow g(10)=P0+ρa l g(12) ρw 10=ρa l(12) al=(11 0/12)=0.830 .83 g / cm 3

Q. A $U$ tube of uniform inner cross-section contains mercury in both sides of its arms. An ethyl alcohol column of length $12 c m$ is introduced into one of its arms. Water of length $10 c m$ is poured into the other arm. Find density of ethanol.

$0.52 g / c m^{3}$

$0.83 g / c m^{3}$

$1.83 g / c m^{3}$

$0.72 g / c m^{3}$

Solution $P_{0} + & r h o_{w} g (10) = P_{0} + ρ_{a l} g (12)$ $ρ_{w} 10 = ρ_{a l} (12)$ $a_{l} = \frac{1 ^{1} 0}{12} = 0.830.83 g / c m^{3}$

Q. A U tube of uniform inner cross-section contains mercury in both sides of its arms. An ethyl alcohol column of length 12cm is introduced into one of its arms. Water of length 10cm is poured into the other arm. Find density of ethanol.

0.52g/cm3

0.83g/cm3

1.83g/cm3

0.72g/cm3