Question

While measuring the length of a rod with a vernier calipers, given figure shows the position of its scales. What is the length of the rod?

• A. 3.26 cm
• B. 3.36 cm
• C. 3.30 cm
• D. 3.20 cm

Answer 1

The correct option is B 3.36 cm

From the figure, $0$ of vernier callipers has gone past $3+0.3=3.3cm$ of main scale. Also, $6^{th}$ division line of vernier scale matches with line of main scale.

So, total reading is $3.3+6\times 0.01=3.36cm$