If in a Vernier callipers $10 \,VSD$ coincides with $8 \,MSD$, then the least count of Vernier calliper is ............ $m$ [given $1 \,MSD =1 \,mm ]$
If in a Vernier callipers $10 \,VSD$ coincides with $8 \,MSD$, then the least count of Vernier calliper is ............ $m$ [given $1 \,MSD =1 \,mm ]$
- A
$1 \times 10^{-4}$
- B
$2 \times 10^{-4}$
- C
$1 \times 10^{-3}$
- D
$8 \times 10^{-4}$
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