Question

16. The width of a wooden block is measured using vernier calipers. What is the width of the block? A) 8.00 mm B) 5.3 mm C) 8.5 mm D) 3.5 mm

Answer 1

The correct answer is 3.5mm

Explanation:

To find: Width of the block?

Solution:

Calculate the Vernier Least count (LC)

LC = smallest reading on the main scale/ Total divisions in the vernier scale

LC = 1mm/ 10

LC = 0.1 mm  

Now, let calculate the total width

Width = main sc.reading + LC (vernier sc. reading)

Width = (3) + {0.1 x 5}

Width = 3  + 0.5

Width = 3.5 mm