Manipal Entrance Test 2014 Physics Paper

On the graph stress is represented on x-axis and strain y-axis
So from the graph y=cot‌θ=

1

tan‌θ

∝

1

θ

[where, θ is the angle from stress axis]
∴ YP<YQ<YR‌‌‌[ As θp<θ0<θA]
We can say that elasticity of wire P is minimum and R is maximum.