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Give SI unit of Young's modulus of elast...

Give SI unit of Young's modulus of elasticity.

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It is defined as ratio of normal stress to the longitudinal strain.
i.e. Young.s modulus (Y) = `("Normal stress")/("Longitudinal strain")=(F//A)/((Delta L)/(L))=(FL)/(A Delta L)`
Its SI unit is N `m^(-2)` or pascal (Pa).
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