A) Vernier callipers has negative zero error of\[1.97\text{ }cm\].
B) Vernier callipers has positive zero error of\[1.97\text{ }cm\].
C) Vernier callipers has negative zero error of\[0.01\text{ }cm\].
D) Vernier callipers has positive zero error of\[0.01\text{ }cm\].
Correct Answer: A
Solution :
[a] Vernier Callipers has \[-ve\]zero error. 1 main scale \[=0.03\] 1 Vernier scale \[=0.029\] Let 'x' be the gap between zero of Vernier scale and Main scale. \[x+2\times 0.03=70\times (0.029)\] \[x=1.97\,cm\]You need to login to perform this action.
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