Answer to Question #87900 in Mechanics | Relativity for Monika

Question

A screw has a pitch equal to 0.5mm .What should be the number of division on its head so as to read correct up to 0.001 mm with its help

Answer 1

Assume number of division equals to n.

Rotating screw by n divisions means shift 0.5 mm.

And rotating screw by 1 division means shift 0.001 mm.

Therefore,

$$n=\frac{0.5}{0.001}=500$$