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What is the reason of low toughness of grey cast iron
(a)Strain rate
(b)Notch effect
(c)Grain size effect
(d)Crystal structure

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Important Questions on Properties of Matter
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Write copper, steel, glass and rubber in order of increasing coefficient of elasticity.

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The stress-strain curves for brass, steel and rubber are shown in the figure. The lines and are for

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The diagram shows stress vs. strain curve for the material and . From the curves we infer that

