NEET Physics Significant Figures MCQ Question
Which of the following combinations regarding significant figures is correct?
All trailing zeros in a decimal number are significant; leading zeros are not significant.
Trailing zeros in a whole number without a decimal are significant; zeros between non-zero digits are not significant.
In scientific notation, trailing zeros in the base number are insignificant; the number of significant figures is determined by the power of ten.
When rounding, if the digit to be dropped is exactly 5, the preceding digit is increased if it is odd; otherwise, it remains the same.
Correct Answer
Detailed Explanation
Statement A correctly describes that all trailing zeros in a decimal number are significant while leading zeros are not significant. This aligns with the NCERT context about significant figures.
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