Question

The main scale of vernier callipers has 10 divisions in a centimetre and 10 vernier scale

divisions coincide with 9 main scale divisions. Calculate length​

Answer 1

Answer:

Least count can calculated using the formula.

Least Count=Length of1 MSD–Length of I VSD

Where MSD and VSD refer to Main Scale Division and Vernier Scale Division respectively. Here 10 divisions on main scale coincide with 9 divisions on vernier scale.

So, 1 VSD is equivalent to 0.9 main scale divisions.

Using the formula for Least Count, we get LC=1MSD–1VSD=1MSD–0.9MSD=0.1MSD=0.1×1mm=0.1mm

As Given, 1MSD=1mm

Answer 2

Answer:

LC = MSD -VSD =1 - ( 9/ 10 ) = 0.1 mm. The main scale reading is MSRo = 0 mm and the Vernier scale reading is VSRo = 3.

Explanation:

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