Question

Torricelli’s barometer used mercury but Pascal duplicated it using French wine of density 984 $\mathrm { kg } \mathrm { m } ^ { - 3 }$In that case, the height of the wine column for normal atmospheric pressure is

(Density of mercury $\left. = 13.6 \times 10 ^ { 3 } \mathrm {~kg} \mathrm {~m} ^ { - 3 } \right)$

• A. 5.5 m
• B. 10.5 m
• C. 9.8 m
• D. 15 m

Answer 1

Answer: (B)

10.5 m

Answer 2

As

Height of mercury column in Torricelli’s barometer

$\rho _ { \text {mercury } } = 13.6 \times 10 ^ { 3 } \mathrm { kgm } ^ { - 3 }$

$\rho _ { \text {french wine } } = 984 \mathrm { kgm } ^ { - 3 }$

Or

Or