Question

6. Give reasons for the following:
a) A 24 hour clock is better than a 12 hour clock
b) A standard system of units is required
c) A beam balance and a physical balance are used for different purposes.
d) the range of a clinical thermometer is lesser than that of laboratory thermometer.
e) mercury is preferred as a Thermometric liquid
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Answer 1

Answer:

a standard system of units is required