Question

write the significant figures of 2.386 and 0.003400​

Answer 1

2.389

0.00340

hope it helps you

Answer 2

The number of significant figures in 2.386 is 4, and in 0.003400​ is 4 as well.

2.386

we know that all the non-zero figures in a number irrespective of their position before or after the decimal is considered significant. In this number we have 4 digits all of them are non-zero hence there are 4 significant figures.

0.003400​

Now, we know that for the zeros after a decimal that are trailing zeros are only considered to be significant. Here we have two trailing zeros and two non-zero digits, therefore there are total of 4 significant figures.