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Application of Pascal's Law

Young's modul...

Question

Young's modulus is the ratio of the logitudinal stress to___

A

Tensile strain

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B

Tensile stress

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C

Tangential strain

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D

Longitudinal strain

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Solution

The correct option is D
Longitudinal strain

Young's modulus is the ratio of the logitudinal stress to longitudinal strain. Since the longitudinal strain is the ratio of two lengths, it has a unit of longitudinal stress i.e. force per unit area or N per square meter.

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