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Vernier Caliper

The reading o...

Question

The reading of given vernier callipers is:

A

5.06 c m

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B

5.6 c m

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C

5.06 m m

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D

5.60 m m

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Solution

The correct option is B $5.6 c m$
The smallest division on main scale $= 1$ cm and the number of divisions on vernier scale $= 5$
Thus, least count of the calipers $L C =$ smallest division on main scale/number of divisions on vernier scale $= 1 / 5 = 0.2$ cm
The total reading $=$ main scale reading $+ [$ vernier scale reading $\times L C] = 5 + [3 \times 0.2] = 5.6$ cm

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