Question
A laboratory thermometer is not suitable for measuring human body temperature. Explain why?

Answer

A laboratory thermometer is not suitable for measuring human body temperature because :
1. Its range is -10°C to 110°C, which is much wider than the human body temperature (35°C-42°C).
2. It does not have a constriction in the stem, so mercury will fall back quickly and cannot show a steady reading.
3. Using it may cause injury due to its longer size and fragile structure.

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