Question 2: \((i)\) \(\quad \sqrt{2} \)
Solution:
- In this problem, the number is under a square root, so start by converting it to a decimal.
- \( \sqrt{2}=1.4 \), rounding to the first digit after the decimal, the number lies between 1 and 2.
- Next, divide the segment between 1 and 2 into 10 equal parts.
- Since the number after decimal is 4, place a dot on the fourth division from 0 toward 1, representing the required number on the number line.