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Per NCERT §1.3 rule, exact integers (like 2 in s = 2πr or n in T = t/n) have how many significant figures?
ASame as the next number
BInfinite
CZero
DOne
Answer & Solution
Correct answer: B. Infinite
NCERT §1.3 rule 6: exact constants and counting integers are not measured and have infinite SF.
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