NEET Physics Significant Figures Assertion Reason Question
Assertion (A): When rounding off the number 2.735 to three significant figures, it becomes 2.73.
Reason (R): If the insignificant digit is 5 and the preceding digit is odd, the preceding digit is raised by 1.
Both A and R are true, and R is the correct explanation of A.
Both A and R are true, but R is not the correct explanation of A.
A is true, but R is false.
A is false, but R is true.
Correct Answer
Detailed Explanation
According to the NCERT context, when the insignificant digit is 5 and the preceding digit is odd, the preceding digit is raised by 1. Therefore, 2.735 rounded off becomes 2.74, not 2.73.
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