Question

Write the number of significant digits in (a) 1001, (b) 100.1, (c) 100.10, (d) 0.001001.

Answer 1

(a) 1001
Number of significant digits = 4
(b) 100.1
Number of significant digits = 4
(c) 100.10
Number of significant digits = 5
(d) 0.001001
Number of significant digits = 4