Question

A steel wire is stretched in an experiment to determine the Young modulus for steel
The uncertainties in the measurements are given below.
measurement
uncertainty
Thes
F
22
load on wire
+2%
2.
length of wire
+0.2%
2
EzFL
AL
L
Ãe
diameter of wire
+1.5%
2
extension
+1%
What is the percentage uncertainty in the Young modulus?
A 1.3%
B 1.8%
с 4.7%
D6.2%​

Answer 1

Answer:

option c 4.7% is correct