In a mercury thermometer, the level of mercury rises when its bulb comes in contact with a hot object. What is the reason for this rise in the level of mercury?
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5
Answer:
in a simple way that you will also know the metal expands on heating right?? if it will have surface area it will starts to flow here and there but the tube like structure make it go upwards
Answered by
2
Answer:
This is so , because mercury at room temperature is in liquid state.For this reason mercury expands on gaining
hot temperature.
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