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Q.

Is it true that accurate measurement is always necessary?


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a

True

b

False 

answer is B.

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Detailed Solution

The above statement is False.
Accurate measurement is necessary because an error in the measurement of weight by 0.1 g  can completely change the result of an experiment.
Whereas in some other cases, accurate measurement is not necessary and only estimation is required because a difference of 0.1 g in the amount of salt or sugar in food will not even be noticed, and putting the detergent 0.1 g amount less or more will not make much difference in washing the clothes.
The correct statement would be, accurate measurement is not always necessary.
 
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