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Significant Figures in Sum

Least count o...

Question

Least count of vernier calliper is :

A

Maximum measurement on main scale / Total number of divisions on scale

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B

Minimum measurement on main scale / Total number of divisions on vernier scale

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C

Maximum count on scale / Minimum count on scale

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D

None of these

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Solution

The correct option is B Minimum measurement on main scale / Total number of divisions on vernier scale
Least count (Vernier Callipers) $= \frac{M i n i m u m m e a s u r e o n m a i n s c a l e}{T o t a l n u m b e r o f d i v i s i o n s o n v e r n e i r s c a l e}$

Minimum measurement that can be made by a measuring device is known as least count.

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