Assertion (A) : Length measured using a hand span is accurate.
Reason (R) : Hand span is not a standard unit of length.
a) A is false but R is true
b) A is true but R is false
c) Both A and R are false
d) Both A and R are true and R is the correct explanation of A.
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d) Both A and R are true and R is the correct explanation of A.
Explanation:
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