why are zeros before a number are insignificant though decimal is present between them for ex 0.03 though they increase the precision of the measurement
Answers
Answer:
because it's a rule that if the zeroes are present between non zero digit then only they can be considered as significant figures otherwise if the zero is present before any non zero digit after the decimal then it is not consideres as significant figures.
ANSWER
The significant figures of a number are those digits that carry meaning contributing to its measurement resolution. This includes all digits except:
1. All leading zeros;
2. Trailing zeros when they are merely placeholders to indicate the scale of the number (exact rules are explained at identifying significant figures);
3. Spurious digits introduced, for example, by calculations carried out to greater precision than that of the original data, or measurements reported to a greater precision than the equipment supports.
(a)
0.007= 7×10
−3
Significant digit =7
Only one significant digit.
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