Which of the following is/are correct with regards to Mohr’s circle? I) It is used to denote shear stress distribution. II) Mohr’s circle can be drawn for a fluid at rest.

Which of the following is/are correct with regards to Mohr’s circle? I) It is used to denote shear stress distribution. II) Mohr’s circle can be drawn for a fluid at rest. Correct Answer only I

Explanation:

Mohr’s circle: The graphical method for expressing the relations developed in this section, called Mohr's circle diagram, is a very effective means of visualizing the stress state at a point and keeping track of the directions of the various components associated with plane stress.

     

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Shear stress versus shear rate behavior of four different types of fluids (I, II, III and IV) are shown in the figure below.
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Which one of the following options is correct?