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
Explanation
Correct Option
cNo explanation available
Video Explanation
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