Increase in height of mercury column indicates:

decrease in atmospheric pressure

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increase in atmospheric pressure

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no change in atmospheric pressure

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increase in humidity in air

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Solution

The correct option is B increase in atmospheric pressure
The pressure at the bottom of mercury column tries to equate the atmospheric pressure outside.
When the compensating height of mercury column increases, it means that the atmospheric pressure has indeed increased.

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Similar questions

The increase of carbon dioxide gas in atmosphere will cause:

(a) decrease in temperature

(b) increase in temperature

(d) increase in humidity.

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