The maximum shear stress is equal to the _______ of the Mohr's circle.

For which of the following stress states can we construct Mohr's circle of stresses? i) A body subjected to direct stress on one plane ii) A body subjected to direct stress on any plane iii) A body subjected to a simple shear stress iv) A body subjected to direct tensile stress on one plane

If σ x and σ y are the major and minor tensile stresses, then the normal stress (σ n ) on a plane inclined at an angle θ to the major principal plane is given by: