Question

which measured number shows 4 significant digits? zeros at the beginning of a decimal are not significant; zeros at the end of a decimal are significant. 0.100 0.001 00.01 1.100

Explanation:

Step1: Check significant digits of 0.100

Leading zero before non - zero digit is not significant. Trailing zeros after non - zero digit and decimal point are significant. So it has 3 significant digits.

Step2: Check significant digits of 0.001

Leading zeros before non - zero digit are not significant. So it has 1 significant digit.

Step3: Check significant digits of 00.01

Leading zeros before non - zero digit are not significant. So it has 1 significant digit.

Step4: Check significant digits of 1.100

Non - zero digits are significant and trailing zeros after non - zero digits and decimal point are significant. So it has 4 significant digits.

Answer:

1.100