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A vernier scale is used in a fortin barometer 10 VSD coincides with 19 MSD and 1 MSD =1 mm and VSD is further divided in two .Least count is -A. 0.1 cmB. .05 mmC. 1 mmD. 0.02mm |
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Answer» Correct Answer - B `1 VSD =(19)/(2xx10)MSD` `LC =1 MSD - 1 VSD =1 - (19)/(20)mm` `=(1)/(20)mm =0.5 mm` |
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