Determination of Youngs Modulus using Searles experiment | Determination of G using simple pendulum

Name the apparatus used for the experimental determination of G.

Discuss experimental determination of Young's modulus of a metallic wire.

Determination OF Function Using Functional Rule

In the experiment to determine the speed of sound using a resonance column -

In the experiment to determine the speed of sound using a resonance column,

Lucas test is used for the determination of :

The time period of a simple pendulum is given by T = 2pisqrt(l/g) . The measured value of the length of pendulum is 10 cm known to a 1 mm accuracy. The time for 200 oscillations of the pendulum is found to be 100 second using a clock of 1 s resolution. The percentage accuracy in the determination of 'g' using this pendulum is 'x'. The value of 'x' to the nearest integer is,

In the determination of Young's modulus (Y = (4MLg)/(pi// d^2) ) by using Searle's method, a wire of length L= 2 m and diameter d = 0.5 mm is used. For a load M = 2.5 kg, an extension l = 0.25 mm in the length of the wire is observed. Quantities d and l are measured using a screw gauge and a micrometer, respectively. The have the same pitch of 0.5 mm. The number of divisions on their circular scale is 100. The contributions to the maximum probable error of the Y measurement