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in Physics by (71.4k points)

Stress-strain curve for two wires of material A and B are as shown in Fig.

(a) which material in more ductile ? 

(b) which material has greater value of young modulus ? 

(c) which of the two is stronger material ? 

(d) which material is more brittle ?

1 Answer

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Best answer

(a) Wire with larger plastic region is more ductile material A.

(b) Young’s modulus is stress/strain

∴ YA > YB 

(c) For given strain, larger stress is required for A than that for B. 

∴ A is stronger than B.

(d) Material with smaller plastic region is more brittle, therefore B is more brittle than A. 

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