Physics - Error Question with Solution | TestHub

$\frac{\begin{array}{c}\text{distance moved by thimble}\\ \text{on main scale}\end{array}}{\text{number of rotation of thimble}}$

$\frac{\text{pitch of the screw}}{\begin{array}{c}\text{number of divisions}\\ \text{on circular scale}\end{array}}$

$\frac{\text{number of rotation of thimble}}{\begin{array}{c}\text{number of circular}\\ \text{scale divisions}\end{array}}$

None of the above