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The principal stresses at a point are 100, 100 and-200 kgf/cm2, the octo hedral shear stress at the point is :

100 2 kg/cm2
200 2 kg/cm2
300 2 kg/cm2
400 2 kg/cm2
500 2 kg/cm2.

Correct Answer: 100 2 kg/cm2

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