What do you mean by upper and lower fixed point of thermometer?
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1
Answer:
The lower fixed point, or ice point, is the temperature of pure melting ice at normal atmospheric pressure. The upper fixed point, or steam point, is the temperature of pure boiling water at normal atmospheric pressure.
Explanation:
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Answered by
6
Answer:
Since it is a Celsius scale the upper fixed point and lower fixed point are determined based on the properties of water. The lower fixed point in Celsius scale is determined by the melting temperature of pure water. And it is given that LFP and UFP are separated by 180mm
.We can use the equation which relates LFP, UFP and length of liquid thread at a temperature to find unknown temperature.
Formula used:
t=x−x0x100−x0×100
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