Question

The given rectangular shaped object pictured is being measured. Its left end is perfectly lined up with "0 m" on the measuring tape. Which of the following is the best and most precise length of the green, rectangular shaped object that can be obtained, using the measuring tape?

• A. 2.0 m
• B. 2.4 m
• C. 2.37 m
• D. 2.377 m
• E. 2.5 m

Answer 1

The correct option is B 2.4 m

Least count of the given scale, $LC=\frac{1}{10}=0.1$ m

From figure, the end of the green rectangular object is close to $4th$ line after $2m$ mark.

Thus most precise length of the object, $L=2.0+0.4=2.4m$