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
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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
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