Question

1. How many significant figures are there i. 0.007050
a) 6
(6)5
(C)4
(d)3​

Answer 1

Answer:

As per the following rules of significant numbers:

1) ALL non-zero numbers (1,2,3,4,5,6,7,8,9) are ALWAYS significant.

2) ALL zeroes between non-zero numbers are ALWAYS significant.

3) Zeroes placed after other digits but behind a decimal point are significant 4)Zeroes placed before other digits are not significant.

Hence in given number i.e. 0.030100×10

6

can be further simplified as 30100.00

According to the rule 1, 3 and rule 4, the total significant numbers are 5.