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The extremities of any diameter on Mohr’s circle represent
  • a)
    principal stresses
  • b)
    normal stresses on planes at 45°
  • c)
    shear stresses on planes at 45°
  • d)
    None of the above
Correct answer is option 'D'. Can you explain this answer?
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The extremities of any diameter on Mohr’s circle representa) principa...
Any diameter on Mohr’s circle represents states of stress on any pair of mutually perpendicular planes.
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The extremities of any diameter on Mohr’s circle representa) principa...
Explanation:

Mohr's circle is a graphical representation of stress transformation. The extremities of any diameter on Mohr's circle do not represent principal stresses or normal stresses on planes at 45° or shear stresses on planes at 45°.

• Principal Stresses: The principal stresses are represented by the intersection of the circle with the x-axis (σ1) and y-axis (σ2).

• Normal Stresses on Planes at 45°: The normal stresses on planes at 45° to the principal planes are represented by the midpoints between the center of the circle and the extremities of the diameter.

• Shear Stresses on Planes at 45°: The shear stresses on planes at 45° to the principal planes are represented by the radii of the circle.

The extremities of any diameter on Mohr's circle do not fall into any of these categories, hence the correct answer is option D, none of the above.
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The extremities of any diameter on Mohr’s circle representa) principal stressesb) normal stresses on planes at 45°c) shear stresses on planes at 45°d) None of the aboveCorrect answer is option 'D'. Can you explain this answer?
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