Question

The level of mercury falls in a barometer while taking it to a mountain.Why?

Answer 1

Answer:

Normal atmospheric pressure is 76 cm of mercury or about 10 m of water. The water column is higher because of the much lower density of water. ... Up a mountain the air pressure is low and so the barometer reading will go down.

Answer 2

Answer:

HeY MaTe uR anS:-

• Normal atmospheric pressure is 76 cm of mercury or about 10 m of water. The water column is higher because of the much lower density of water. You couldn't use a straw to suck a drink up more than 10 m. You should think about why this is and try and explain it.

• If the atmospheric pressure drops it will not be able to hold up so much mercury and so the level in the barometer tube will fall. Up a mountain the air pressure is low and so the barometer reading will go down

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