Sample 1Easy
How many significant figures are there in 0.007 m²?
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The answer is A.
In a number less than one, the zeros to the right of the decimal point and before the first non-zero digit are not significant. So 0.007 has only one significant figure, the 7.
- B.
Counts one of the leading zeros as significant.
- C.
Counts the zeros after the decimal point as significant.
- D.
Counts every zero, including the one before the decimal point.
NCERT: Class 11 Physics, Chapter 1, 1.3