Question

Plssss ans the que no. 12 VERY URGENT.
The correct nd well explaind will be marked the Brainlest.

Answer 1

least count of Main scale = Length of the scale/Total no of divisions

                                          = 10/200

                                           = 1/20 =  0.05cm

Least count of vernier scale = Least count of main scale/No. Of divisions on vernier scale

                                               = 0.05/25 = 0.002cm