Question

How many significant figures in 8×10³?
a) 1
b) 2
c) 3
d) 4

Answer 1

The number 8×10³ has 1 significant figures.

So, the correct answer is a) 1.

Step-by-step explanation:

To determine the number of significant figures in 8×10³, we first need to understand what significant figures are and how they are calculated. Significant figures are the number of digits in a measurement that have meaning, including the first non-zero digit and any subsequent digits that have uncertainty.

In the case of 8×10³, we have the number 8, which is followed by three zeros. In this case, the 8 is the first non-zero digit, and there are no other digits with uncertainty. Therefore, we can determine the number of significant figures in 8×10³ by counting the number of non-zero digits.

Using the given options, we can analyze each one:

a) 1 b) 2 c) 3 d) 4

The number 8 has only one non-zero digit, so the correct answer is 1.

So, the correct answer is a) 1.