What is the relationship between modulus of elasticity and modulus of rigidity?

What is the relationship between modulus of elasticity and modulus of rigidity? Correct Answer C = 2E / (1 + μ)

The relation is given by calculating the tensile strain of square block is given by taking tensile strain in a diagonal. On equating that stains we get the relation, C = E / 2(1 + μ).

Related Questions

If E, N, K and $$\frac{1}{{\text{m}}}$$ are modulus of elasticity, modulus of rigidity. Bulk modulus and Poisson ratio of the material, the following relationship holds good
What is the relationship between Youngs modulus E, modulus of rigidity C, and bulk modulus K?
The relation between modulus of elasticity (E) and modulus of rigidity (C) is given by