Question

answer each question.
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4
read this vernier caliper as accurately as possible.
what do you read?
mm
ok

Explanation:

Step1: Determine the main scale reading

The main scale reading is \(8\) mm.

Step2: Determine the vernier scale reading

The vernier scale has a least - count of \(0.05\) mm. The 30th vernier scale division coincides with a main scale division. So the vernier scale reading is \(30\times0.05=1.5\) mm.

Step3: Calculate the total reading

The total reading is the sum of the main scale reading and the vernier scale reading. So \(8 + 1.5=9.5\) mm.

Answer:

\(9.5\)