The diagram shows part of the vernier scale on a pair of calipers. Which reading is correct? (a)...

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The diagram shows part of the vernier scale on a pair of calipers.
Which reading is correct?
(a) \( 2.74 \mathrm{~cm} \)
(b) \( 3.10 \mathrm{~cm} \)
(c) \( 3.26 \mathrm{~cm} \mathrm{(d)} 3.64 \mathrm{~cm} \)
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