---
title: "A student uses a mercury barometer to measure atmospheric pressure. If the student replaces the original tube with one that has \\( 2 \\) times the cross-sectional area, how will the height \\( h \\) of the mercury column change?"
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url: "https://nerd-notes.com/ubq/107129/"
date_modified: "2026-08-18T02:38:25+00:00"
---

# A student uses a mercury barometer to measure atmospheric pressure. If the student replaces the original tube with one that has \( 2 \) times the cross-sectional area, how will the height \( h \) of the mercury column change?

A student uses a mercury barometer to measure atmospheric pressure. If the student replaces the original tube with one that has \( 2 \) times the cross-sectional area, how will the height \( h \) of the mercury column change?

- **A.** The height \( h \) will remain the same.
- **B.** The height \( h \) will be reduced by half.
- **C.** The height \( h \) will decrease by a factor of \( \sqrt{2} \).
- **D.** The height \( h \) will double.

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/107129/*