Basic Maths and Units and DimensionsHard
Question
The graph shown the extension of a wire of length 1m suspended from the top of a roof at one end and with a load W connected to the other end. If the cross sectional area of the wire is 1 mm2, then the Young′s modulus of the material of the wire.
Options
A.2 × 109 Nm-2
B.2 × 1010 Nm-2
C.
× 1011 Nm-2
× 1011 Nm-2D.None of these
Solution
Y = 
= slope ⇒ Y
=
(slope) = 
= 2 × 109 Nm-2
= slope ⇒ Y=
(slope) = = 2 × 109 Nm-2Create a free account to view solution
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