Question
Explain why a clinical thermometer should not be washed with hot water.
✓
Answer
A clinical thermometer is constructed for the purpose of recording the temperature of the human body. Hence, its stem is such that it can allow the mercury to rise up to a temperature of about 42 °C. The temperature of hot water may be more than 42 °C. Therefore, when a clinical thermometer is washed with hot water, mercury will not have enough room for expansion and the thermometer would break.
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
Using Archimedes’ principle, determine the magnitude of the buoyant force.
State the properties of non-metals.
Tabla (Percussion instrument):
The volume of a plastic-covered sealed box is $350 cm^3$ and the box has a mass 500 g . Will the box float on water or sink in water? What will be the mass of water displaced by the box?
→The volume of an object is $20 cm^3$ and the mass is 50 g . The density of water is $1 gm ^{-3}$. Will the object float on water or sink in water?
→What is a contact force? Give one example.
Complete the five kingdom method of classification using-living organism, prokaryotes, eukaryotes, multicellular, unicellular, protista, animals, plants, fungi.
How are non-metal ions formed? Give two examples.
Why do the load carrying heavy vehicles have large number of wheels?
Obtain an expression for the variation of the density of a solid with temperature.
Answer:
Answer: