NEET Physics Significant Figures MCQ Question
Which of the following statements about significant figures is correct?
In a calculation, the final result should not have more significant figures than the least precise measurement used.
Trailing zeros in a whole number without a decimal point are always significant.
When rounding, if the digit to be dropped is 5, the preceding digit is always increased by 1.
The number of significant figures in a measurement can be increased by multiplying it by a power of ten.
Correct Answer
Detailed Explanation
According to the rules for arithmetic operations with significant figures, the final result should reflect the precision of the least precise measurement, which aligns with option A. Options B, C, and D present common misconceptions about significant figures.
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