verior callipers has its main scale of 10 cm equally divided into 200 equal parts. Its vernier scale of 25 divisions coincides with 12 mm on the main scale. The last count of the instrument is a 0020 cm b. 0.002 cm 0010 cm d. 0.001 cm
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0.002cm
explanation -
10cm of main scale =200div of main scale
=IMSD =0.05 cm
given 25 verneir scale division coincide with 12mm on main scale
=12/0.5= 24 MSD
25VSD=24MSD
=IVSD =25/24MSD =0.048cm
Least count = 1MSD -1VSD
=(0.050-0.048) cm
= 0.002 cm
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