1A stiff material is characterized by which of the following properties regarding its Young's modulus and elastic deformation?
2
Which of the following factors affect the value of Young's modulus for a specific metallic wire?
3In Searle's experiment, why is a control (reference) wire used alongside the test wire?
4In the measurement of Young's modulus ($Y = \frac{4FL}{\pi d^2 l}$), if the maximum permissible error in measuring the diameter $d$ is 1% and in measuring the elongation $l$ is 2%, while $F$ and $L$ are known exactly, what is the maximum percentage error in $Y$?
5According to the stress-strain curve for a typical metal, what does the slope of the linear region (proportionality limit) represent?
6Identify the correct expressions related to the energy and mechanical properties of a stretched wire.
7What is the primary reason for taking measurements during both the 'loading' and 'unloading' phases in Searle's method?
8A student measures the extension of a 2m wire to be 0.8mm with an uncertainty of 0.05mm. The diameter is 0.4mm with an uncertainty of 0.01mm. Which measurement contributes more to the maximum relative error of the Young's Modulus calculation?
9How is 'back-lash error' avoided when using a micrometer or screw gauge in Searle's apparatus?
10If a steel wire is replaced by another steel wire of double the length and half the diameter, what happens to the Young's modulus of the new wire?
