There are two Vernier calipers both of which have $$1$$ cm divided into $$10$$ equal divisions on the main scale. The Vernier scale of one of the calipers $$C1$$ has $$10$$ equal divisions that correspond to $$9$$ main scale divisions. The venire scale of the other caliper $$C2$$ has $$10$$ equal divisions that correspond to $$11$$ main scale divisions. The readings of the two calipers are shown in the figure. The measured values (in$$ $$cm) by calipers $$C1$$ and $$C2$$, respectively, are

Question

There are two Vernier calipers both of which have $$1$$ cm divided into $$10$$ equal divisions on the main scale. The Vernier scale of one of the calipers  $$C1$$ has $$10$$ equal divisions that correspond to $$9$$ main scale divisions. The venire scale of the other caliper $$C2$$  has $$10$$ equal divisions that correspond to $$11$$ main scale divisions. The readings of the two calipers are shown in the figure. The measured values (in$$ $$cm) by calipers  $$C1$$ and $$C2$$, respectively, are

Infinity Learn · Accepted Answer

For $$C1$$, ​$$LC=MSD$$−$$VSD=1mm$$−$$0.9mm=0.1mm=0.01cm$$     ∵$$10VSD=9mm$$​$$Reading=MSR+LC$$×$$n=2.8+0.01$$×$$7=2.87cm$$ For $$C2$$,​$$LC=MSD$$−$$VSD=1mm$$−$$1.1mm=$$−$$0.1mm=$$−$$0.01cm$$      ∵$$10VSD=11mm$$​$$Reading=2.8+10$$−$$7$$×$$0.01=2.83cm$$

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