Question
Describe the construction of mercury thermometer.
✓
Answer
- For constructing a thermometer, a thick-walled capillary tube with a uniform bore is taken. The tube has a thin-walled glass bulb at one end.
- The bulb and a small part of the tube is filled with mercury. The other end of the tube is sealed after removing air from it.
- The tube is then calibrated and the temperature of the substance can be read with it.
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