Elastomers are materialsa)which can be stretched without corresponding stressb)which cannot be stretched to cause large strainsc)which cannot be stretched to beyond elastic limitd)which can be stretched to cause large strainsCorrect answer is option 'D'. Can you explain this answer?

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Elastomers are materials

a)
which can be stretched without corresponding stress
b)
which cannot be stretched to cause large strains
c)
which cannot be stretched to beyond elastic limit
d)
which can be stretched to cause large strains

Correct answer is option 'D'. Can you explain this answer?

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Elastomers are materialsa)which can be stretched without corresponding...

An elastomer is a polymer with viscoelasticity (i. e., both viscosity and elasticity) and very weak intermolecular forces, and generally low Young's modulus and high failure strain compared with other materials. Elastomer rubber compounds are made from five to ten ingredients, each ingredient playing a specific role. Polymer is the main component, and determines heat and chemical resistance, as well as low- temperature performance. Reinforcing filler is used, typically carbon black, for strength properties.

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Elastomers are materialsa)which can be stretched without corresponding...

Elastomers are materials that can be stretched to cause large strains. Let's break down the given options to understand why option D is the correct answer.

a) Elastomers can be stretched without corresponding stress: This statement is incorrect. Elastomers can be stretched, but there is always some stress involved when stretching them. When an elastomer is stretched, it experiences a force that opposes the stretching, known as stress.

b) Elastomers cannot be stretched to cause large strains: This statement is incorrect. Elastomers are known for their ability to undergo large strains when stretched. Unlike other materials like metals or ceramics, elastomers can stretch significantly without breaking or undergoing permanent deformation.

c) Elastomers cannot be stretched beyond the elastic limit: This statement is incorrect. Elastomers can indeed be stretched beyond their elastic limit. The elastic limit is the maximum stress a material can withstand without undergoing permanent deformation. Elastomers, however, can be stretched beyond this limit and still return to their original shape when the stress is removed.

d) Elastomers can be stretched to cause large strains: This statement is correct. Elastomers are highly elastic materials that can be stretched to cause large strains. This property is due to their unique molecular structure, which allows them to undergo significant deformation and then return to their original shape when the stretching force is released.

Elastomers are widely used in various applications, including rubber bands, tires, gaskets, seals, and many more. Their ability to stretch and recover their original shape makes them ideal for such applications where flexibility and resilience are required.

In conclusion, option D is the correct answer because elastomers can indeed be stretched to cause large strains, distinguishing them from other materials.

Answered by Mohit Rajpoot · View profile

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Elastomers are materialsa)which can be stretched without corresponding stressb)which cannot be stretched to cause large strainsc)which cannot be stretched to beyond elastic limitd)which can be stretched to cause large strainsCorrect answer is option 'D'. Can you explain this answer?

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