Question on: WAEC Physics - 2005
Which of the following statements about a spring balance and/or a chemical balance is not correct?
A
the chemical balance operates on the principle of moments
B
the sprin balance operates on Hooke's law
C
either may be used to measure the weight of a substance
D
the reading of a spring balance changes over the surface of the earth, while that of the chemical balance remaind constant
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Correct Option: C
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