How does a mercury barometer work?
Explain briefly.
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Working of mercury barometer: When the glass tube is immersed in the mercury the air pressure in the atmosphere presses the surface of the mercury. This causes some of the mercury in the tube to rise up inside the tube. The mercury inside the tube rises if the air pressure in the atmosphere is greater
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1
Answer:
Working of mercury barometer: When the glass tube is immersed in the mercury the air pressure in the atmosphere presses the surface of the mercury. This causes some of the mercury in the tube to rise up inside the tube. ... When there is less atmospheric pressure the rise of mercury in the tube is less.
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