The stress-strain curves for three wires of different materials are shown in figure, where P, Q and R are the elastic limits of the wires. He figure shows that

Question

The stress-strain curves for three wires of different materials are shown in figure, where P, Q and R are the elastic limits of the wires. He figure shows that (A) elasticity of wire P is maximum (B) elasticity of wire Q is maximum (C) elasticity of wire R is maximum (D) None of the above is true

Tardigrade Admin · Accepted Answer

As stress is shown on x- axis and strain on y-axis. So, we can say that Y= cot θ =(1/ tan θ ) =(1/ textslope) slope So, elasticity of wire P is minimum and of wire R is maximum.

Q. The stress-strain curves for three wires of different materials are shown in figure, where P, Q and R are the elastic limits of the wires. He figure shows that

elasticity of wire P is maximum

elasticity of wire Q is maximum

elasticity of wire R is maximum

None of the above is true

As stress is shown on $x -$ axis and strain on y-axis.
So, we can say that
$Y = cot θ = \frac{1}{t a n θ}$
$= \frac{1}{slope}$ slope
So, elasticity of wire P is minimum and of wire R is maximum.

Q. The stress-strain curves for three wires of different materials are shown in figure, where P, Q and R are the elastic limits of the wires. He figure shows that

elasticity of wire P is maximum

elasticity of wire Q is maximum

elasticity of wire R is maximum

None of the above is true

As stress is shown on x− axis and strain on y-axis. So, we can say that Y=cotθ=tanθ1​ =slope1​ slope So, elasticity of wire P is minimum and of wire R is maximum.

As stress is shown on $x -$ axis and strain on y-axis.
So, we can say that
$Y = cot θ = \frac{1}{t a n θ}$
$= \frac{1}{slope}$ slope
So, elasticity of wire P is minimum and of wire R is maximum.