Lead is more ductile than iron. The correct option is A. Lead is more ductile than iron
Young's modulus
From the question, we are to determine the statement which is true
First, we will define the term Young's modulus
Young's modulus is a measure of the stiffness of an elastic material. It is also given as the ratio of stress to strain. That is,
[tex]Young's\ modulus = \frac{Tensile\ stress}{Tensile\ strain}[/tex]
The greater the modulus, the stiffer the material.
Materials with low Young's modulus tend to be ductile and materials with high Young's modulus tend to be brittle
Since the Young's modulus value for iron is higher than that of lead, then iron is stiffer than lead.
Thus, lead is more ductile than iron. The correct option is A. Lead is more ductile than iron
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