Elastic Moduli
Elastic Moduli: Overview
This topic covers concepts, such as, Young's Modulus of Elasticity 'Y', Bulk Modulus of Elasticity 'B', Unit and Dimension of Poisson's Ratio & Significance of Poisson's Ratio etc.
Important Questions on Elastic Moduli
A student performs an experiment to determine the Young’s modulus of a wire, exactly long, by Searle’s method. In a particular reading, the student measures the extension in the length of the wire to be with an uncertainty of at a load of exactly . The student also measures the diameter of the wire to be with an uncertainty of . Take (exact). The Young’s modulus obtained from the reading is

A steel wire of cross-sectional area can withstand a maximum strain of . Young's modulus of steel is . The maximum mass this wire can hold is,

A copper and a steel wire of same diameter are connected end to end. A deforming force is applied to this composite wire which causes a total elongation of . The two wires will have:

Lateral strain produced in a wire depends on:

Lateral strain is produced in a wire lying on a table, when a force is applied on its one end, perpendicular to its area of cross-section.

Which one of the following is true about Bulk Modulus of elasticity?

What is bulk modulus and its unit?

The SI units of bulk modulus of elasticity will be Pascal (Pa) or Newton per square metre (N/m^2).

Young's modulus of a material has the same unit as

The dimensional formula of Young's modulus is . The value of is _____.

The Bulk modulus of a material having young's modulus and modulus of rigidity .

What would be the value of Bulk modulus for a material which has young's modulus and modulus of rigidity ? ( in )

The bulk modulus for an incompressible liquid is _____.

The bulk modulus for an incompressible liquid is infinite.

The ratio of shearing stress to the corresponding shearing strain is called the modulus of _____.

The dimensional formula of modulus of rigidity is .

State the units and dimensions of modulus of rigidity.

The dimensional formula of modulus of rigidity is

What is the dimensional formula for the Poisson's ratio?

The dimensions of Poisson's Ratio is-
