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CBSE Class 11-science Answered

The vernier scale division of a  scale is divided into 30 division such it coinsides with 29 main scale division.If each main scale division is half degree what will be the least count of the instrument
Asked by tps.mjmdr | 09 Jul, 2018, 05:33: PM
answered-by-expert Expert Answer
Least count LC = 1 Main Scale Division - 1 Vernier scale division = 1 MSD - 1 VSD
 
1 VSD = (29/30) MSD (given in question)
 
LC = [ 1-(29/30) ] of MSD   = (1/30) of MSD = (1/30)×0.5° = (1/30)×30 mins = 1 mins
 
( 1º = 60 minutes )
Answered by Thiyagarajan K | 16 Jul, 2018, 12:49: PM
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CBSE 11-science - Physics
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CBSE 11-science - Physics
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