At a place where the air pressure is the same as at sea level

PHYSICS · Single correct · CBSE · Physics · Gravitation · Gravitation

Problem

At a place where the air pressure is the same as at sea level, a mercury barometer shows a column height of

76\,\text{cm}

. If the mercury were replaced by a liquid of density

1.36\times10^{3}\,\text{kg\,m}^{-3}

, which of the following best describes the new column height? (a) It remains the same as the mercury height (

76\,\text{cm}

). (b) It becomes

\sqrt{10}

times larger than the mercury height (about

2.4\,\text{m}

). (c) It becomes

10

times larger than the mercury height (about

7.6\,\text{m}

). (d) It becomes

\dfrac{1}{10}

of the mercury height (about

7.6\,\text{cm}