Question

The diameter of a wire of length 100 cm is
measured with the help of a screw gauge.The main
scale reading is 25. Pitch of the screw gauge is 1 mm
and total number of divisions
on the circular scale is 100. The wire is used
in an experiment for determination of
Young's modulus of the wire by searle's
method. The following data are available:
elongation in the wire ∆l=0.125 cm under the tension of 50N, least count for measuring normal length of wire is 0.01 cm
and for elongation in the wire is 0.001 cm.
The maximum error in calculating the
value of Young's modulus (Y) is
(8×n)/10%
where n is very nearly an integer. Find the
value of n. (Assuming that the force is
measured very accurately)​

Answer 1

Answer:

3

Explanation:

it's too long..but here it is