You are given a thread and a metre scale. How will you estimate the diameter of the thread ?

You are given a thread and a metre scale. How will you estimate the di

1.	You are given a thread and a metre scale. How will you estimate the diameter of the thread ?
Answer» Solution :GIVEN string is wound on PENCIL in such a way that tums are very close to each other tightly packed. We get no. of TURNS by measuring with scale let length of this loop is L Let number of turns in loop are n. `:.` Length of each TURN = thickness of each `turn=(l)/(n)` This thickness will be equal to diameter (thickness) of string.