If the least count of a screw gauge is 0.001 cm and diameter of a wire measured by it is 0.236 cm, find the permissible percentage error in the measurement.

If the least count of a screw gauge is 0.001 cm and diameter of a wire

1.	If the least count of a screw gauge is 0.001 cm and diameter of a wire measured by it is 0.236 cm, find the permissible percentage error in the measurement.
Answer» SOLUTION :% ERROR in VOLUME `=3(Deltar//r)%=4.8%, Deltar//r=4.8//3=1.6%`.