Question

1) the least count of vernier calliper is____cm?
2)the dimensional equation for velocity is_____?
3)the scientist who discovered electron is ______?
4)the fundamental units are ____,_____and______?​

Answer 1

2) Velocity Dimensional formula=[M^0L^1T^-1]

3) Electron was discovered By JJ Thomson

4) The fundamental units are Length,Mass,Time