Tag: elastic behaviour of solids

Questions Related to elastic behaviour of solids

Pick up the correct statement:

chemistry substances in the surroundings - their states and properties elastic behaviour of solids elastic and plastic substances properties of substances

  1. Cubic crystals exhibit isotropic nature with respect to therma expansion

  2. Anisotropic solids expand in one direction and contract in perpendicular direction

  3. Many of the crystals are anisotropic solids

  4. Rock salt crystal exhibits isotropic nature with respect to thermal expansion

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Correct Option: C

The nearest approach to a perfect plastic body is

physics properties of material substances elastic behaviour of solids elastic and plastic substances properties of substances

  1. diamond

  2. quartz fiber

  3. putty

  4. none of these

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Correct Option: B

The materials, which do not show a fixed trend of deformation vs. applied force, are called:

physics properties of material substances elastic behaviour of solids elastic and plastic substances properties of substances

  1. inelastic materials

  2. plastic materials

  3. elastic materials

  4. rigid materials

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Correct Option: A
Explanation:

Elastic materials are those that follow the Hooke's law, which is that the deformation produced in a material is directly proportional to the stress applied to it, and the material is recoverable after the deformation force is removed.

Inelastic materials are those that do not follow this relationship. They do not show a fixed trend of deformation vs applied force; in fact, they might not deform at all (rigid materials) or the deformation observed is not completely recoverable.