Physics · Fluid Mechanics
When a Fortin's barometer is taken to a high mountain, the mercury column drops because:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1The air there is relatively lighter
- 2The decrease in temperature causes the mercury to contract heavily
- 3The atmospheric pressure becomes lower there✓
- 4Surface tension increases dramatically there
Correct answer
The atmospheric pressure becomes lower there
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