The ratio of the lateral strain to the linear strain is called

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WBPSC JE Mechanical 2018 Official Paper
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  1. Modulus of elasticity
  2. Modulus of rigidity
  3. Bulk modulus
  4. Poisson's ratio

Answer (Detailed Solution Below)

Option 4 : Poisson's ratio
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Explanation: 

Poisson's ratio (μ):

When a homogeneous material is loaded within its elastic limit (or limit of proportionality) the ratio of lateral strain to linear strain is constant and is known as Poisson's ratio.

\({\rm{μ }} = \dfrac{{{\rm{Lateral\;strain}}}}{{{\rm{Linear\;strain}}}}\)

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