Physics And Measurement Question 283

Question: One centimeter on the main scale of a vernier calipers is divided into 10 equal parts. If 10 divisions of vernier coincide with 8 small divisions of the main scale, the least count of vernier calipers is

Options:

A) 0.01 cm

B) 0.02 cm

C) 0.05 cm

D) 0.005 cm

Show Answer

Answer:

Correct Answer: B

Solution:

[b] The value of 1 division of main scale $ =\frac{1}{10}=0.1cm $

The value of 1 division of vernier scale $ =\frac{8\times 0.1}{10}=0.08cm $

Thus $ L.C.=0.1-0.08=0.02cm $



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