Question

how many significant figures in the following number? 1.0060
4
1
5
2

Explanation:

Step1: Identify non-zero digits

Non-zero digits (1,6) are significant: 2 digits

Step2: Count captive zeros

Zeros between non-zeros (the two 0s between 1 and 6) are significant: +2 digits

Step3: Count trailing decimal zero

Final zero after decimal (the last 0) is significant: +1 digit

Step4: Sum all significant digits

$2 + 2 + 1 = 5$

Answer:

5 (Option: 5)