Question

Number of significant Figures in the number 1.065

(a) 3

(b) 4

(c) 2

(d) 1​

Answer 1

Concept: Significant figures are the number of digits in a value, often a measurement, that contributes to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.

Step 1: In 1.605, we see that the first non-digit number is 1. So we start counting the number of significant figures from 1 itself.

Step 2: On counting we see that there are 4 significant figures, 1 before the decimal point and 6, 0, 5 after the decimal point.

Final ans: Final ans 1, 6,0, 5 are the  significant figures in the number 1.605.