GK
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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mercury has greater visibility than water
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specific heat of mercury is less than water
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density of mercury is more than the water
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specific heat of mercury is more than water
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Detailed explanation-1: -The visibility of the fluid. Mercury has a high coefficient of expansion. As a result, even the tiniest variation in temperature is noticeable while using mercury in the thermometer. The boiling point of mercury is greater than the boiling point of water, so mercury can be used for measuring high temperatures.
Detailed explanation-2: -Mercury is in liquid state at room temperature. It’s used in thermometers because it expands even for a slight change in temperature. It also has a high boiling point which makes it very suitable to measure higher temperatures.
Detailed explanation-3: -Solution: Mercury is much denser than water because when the air pressure drops, mercury expands while water does not expand.
Detailed explanation-4: -Mercury has a high boiling point, it may be used to detect greater temperatures as well.