SEARLE'S EXPERIMENT

EXPERIENCE

A student performs an experiment to determine the Young's modulus of a wire, exactly 2m long, by Searle's method. In a partcular reading, the student measures the extension in the length of the wire to be 0.8mm with an uncertainty of +- 0.05mm at a load of exactly 1.0kg , the student also measures the diameter of the wire to be 04mm with an uncertainty of +-0.01mm . Take g=9.8m//s^(2) (exact). the Young's modulus obtained from the reading is

Some Partition Experiences

In Searl's experiment a graph is plotted between

How many number of wires are used in Searl's experiment for determining Young's modulus of elasticity ?

In Searl's experiment, which is used to find Young's Modulus of elasticity, the diameter of experimental wire is D = 0.05cm (measured by a scale of least count 0.001cm ) and length is L = 110cm (measured by a scale of least count 0.1cm ). A weight of 50N causes an extension of X = 0.125 cm (measured by a micrometer of least count 0.001cm ). find the maximum possible error in the values of Young's modulus. Screw gauge and meter scale are free error.

In Searle's apparatus:

Searle's method is used to determine

A load of mass M kg is suspended from a steel wire of length 2 m and radius 1.0 mm in Searle's apparatus experiment. The increase in length produced in the wire is 4.0 mm , Now the loads is fully immersed in a liquid of relative density 2. The relative density of the material of load is 8. The new value of increase in length of the steel wire is :