What is a plastic body ?...

What is a plastic body ?

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A metrial which readily undergoes permanent or plastic deformation when subjected to a small deforming stress exhibits plasticity and is called a plastic metrial material. A body made of plastic material is called a plastic body.

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Which of the following is not a plastic body?

Rubber

Clay

Plasticine

Putty

Statements: Some files are documents All documents are cartons No cartons is a plastic Conclusions: I. No file is a plastic II. Some files are plastics

If only conclusion I follows

If only conclusion II follows

If either conclusion I or conclusion II follows

if neither conclusion I nor conclusion II follows

Statement-1: Young's modulus for a perfectly plastic body is zero Statement-2: For a perfectly plastic body, restoring force is zero.

Statement-1, is true, Statement-2 is true, Statement-2 is correct explanation for statement-1

Statement-1 is true, statement-2 is true, statement-2 is NOT a correct explantion for statement-1

statement-1 is true, statement-2 is false

statement-1 is false statement-2 is true