NEET Physics Significant Figures MCQ Question
Which combination of statements about significant figures is correct?
All non-zero digits are significant; trailing zeros in a number without a decimal point are significant.
Zeros between non-zero digits are significant; trailing zeros in a decimal number are significant.
Zeros to the left of the first non-zero digit are significant; the result of a calculation cannot be more accurate than the original measurements.
The position of the decimal point affects the number of significant figures; trailing zeros in scientific notation are not significant.
Correct Answer
Detailed Explanation
Statement B is correct as it aligns with the NCERT context, which states that zeros between non-zero digits are significant and that trailing zeros in a decimal number are also significant. Statement A is incorrect because trailing zeros in a number without a decimal point are not significant. Statement C is incorrect as zeros to the left of the first non-zero digit are not significant. Statement D is also incorrect since the position of the decimal point does not affect the number of significant figures.
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