You are given a thread and a metre scale. How will you estimate the diameter of the thread? | Learn NCERT solution | Education portal Class 11 Physics | Study online Unit-2 Units and Measurements





Q.8(a):- You are given a thread and a metre scale. How will you estimate the diameter of the thread?

 

Answer:-
Wrap the thread on a uniform smooth rod in such a way that the coils thus formed are very close to each other. Measure the length of the thread using a metre scale. The diameter of the thread is given by the relation,
Diameter = Length of thread/Number of turns