where on the vernier caliper would you read to obtain the vernier scale reading

No unit for vernier scale coincidence. But as we multiply it by least count which has unit then we get vernier scale reading with the same unit. Of course main scale reading and vernier scale reading would have the same unit

1)Main Scale is fixed(It does not move) Vernier scale slides along main scale.


2)Least count of Mainscale is 0.1cm
Least count of vernier scale is 0.01cm

Vernier scale consists of main scale and vernier scale. The first line or the zeroth line coinciding with the main scale reading is the main scale reading. The vernier line except zeroth line coinciding with any line on main scale is the main scale reading.

Their Vernier scale consists of two readings; the Vernier scale and the main scale. One can read that by the first line is the main scale and the next line is the Vernier reading.