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Young's modulus of elasticity is the rat...

Young's modulus of elasticity is the ratio of

A

Hydraulic stress and hydraulic strain

B

Shearing stress and shearing strain

C

Tensile stress and longitudinal strain

D

Bulk stress and longitudinal strain

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The correct Answer is:
C
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Young's modulus is

Assertion Young's modulus of elasticity is not defined for liquids. Reason Liquids cannot be stretched as wires.

A matallic wire is stretched by suspending weight to it. If alpha is the longitudinal strain and Y its Young's modulus of elasticity, shown that the elastic potential energy per unit volume is given by Y alpha^(2)//2

Assertion If length of a wire is halved, its Young's modulus of elasticity will become two times. Reason The ratio of longitudinal stress and longitudinal strain is called Young's modulus of elasticity.

Stress-strain curve for four metals are shown in figure. The maximum Young's modulus of elasticity is for metal

A metallic wire is stretched by suspending a weight of it. If alpha^(2) is the longitudinal strain and Y is its Young's modulus of elasticity, then slow that the elastic potential energy per unit volume is given by 1//2Y^(2) .

The units of Young's modulus of elasticity are

Young modulus of elasticity for a gas is

Define Young's modulus of elasticity. Give its units and dimensions

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