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Which is more elastic, steel or rubber? ...

Which is more elastic, steel or rubber? Why?

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Steel, Because, modulus of rigidity `=( "Stress")/( "Strain")` . Consider a steel and rubber wire of equal length and equal cross-section area. If the same force is applied to both, then strain of rubber is more, i.e., its elasticity its less or steel is more elastic.
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Knowledge Check

  • Let Y_(g) and Y_(r ) represent Young's modulus for glass and rubber respectively. It is said that glass is more elastic than rubber. Therefore , it follows

    A
    `Y_(g) = Y_(r )`
    B
    `Y_(g) lt Y_(r )`
    C
    `Y_(g) gt Y_(r )`
    D
    `Y_(g)//Y_(r ) = 0`

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