Question

6) How many significant figure are there in the number 0.02040?
a) 6
b) 5
c) 4.
d) 3​

Answer 1

Answer:

5 is the answer for the question.

Answer 2

Answer:

There are 4 significant figures in 0.02040

Step-by-step explanation:

Given the number 0.02040

Here, as per the rule of significant figures,

Non zero numbers are significant. So, 2 and 4 are significant

Also zeros between two non zero numbers are significant so, the 0 between 2 and 4 are significant

Final zero after decimal point is significant. So, 0 after 4 is also significant

The 0 before 2 is not significant because it is used for spacing and does not come between any none zero numbers

For a number less than 1, the 0 to the left of the decimal point is not significant so the first 0 is also not significant

So, total number of significant figures = 2,0,4,0 = 4

So there are 4 significant figures in the number 0.02040

Option (c) is correct