Use of decimals in measures of lengths

Units of measurement of length.

Acceleration due to gravity is to be measured using simple pendulum. If a and b are percentage errors in the measurement of length and time period respectively, then percentage error in the measurement of acceleration due to gravity is

What is the reliability of measurement of length using a metre scale ?

Which one of the following intruments is not used for the measurement of length?

Find the greatest possible length of the rope which can be used to measure two sticks of lengths 24 m and 18 m.

A steel tape is correctly calibrated at 20^(@)C and is used to measure the length of a table at 30^(@)C . Find the percentage error in the measurement of length. [alpha_(steel) = 11 xx 10^(-5)//.^(@)C]

In the experiment to determine Young's modulus of the material of a wire under tension used in the arrangement as shown. The percentage error in the measurement of length is a in the measurement of the radius of the wire is b and in the measurement of the change in length of the wire is c . Percentage error in the measurement of Young's modulus for a given load is