Physics · May / June 2019 · Paper 12 · Question 14

The diagram shows a manometer containing mercury that is sealed at one end. [diagram: sealed-end mercury manometer with vacuum above the mercury and height h marked] What happens to the distance h when the manometer is taken higher up a mountain?

1. AIt decreases, because atmospheric pressure decreases with height.
2. BIt decreases, because atmospheric pressure increases with height.
3. CIt increases, because atmospheric pressure decreases with height.
4. DIt increases, because atmospheric pressure increases with height.

As printed in the paper