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Elasticity Test...

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  • Question 1
    1 / -0

    Work done by restoring force in a wire within elastic limit is -10 J. Maximum amount of heat produced in the wire is

  • Question 2
    1 / -0

    The work done per unit volume to stretch the length of area of cross-section 2 mm2 by 2% will be [Y=8×1010 N/m2]

  • Question 3
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    Which one of the following statements is wrong?

  • Question 4
    1 / -0

    On stretching some substances, why is permanent elongation caused?

  • Question 5
    1 / -0

    On abruptly withdrawing the stretching force acting on a wire, its temperature will:

  • Question 6
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    The temperature of the wire is doubled. Young's modulus of elasticity:

  • Question 7
    1 / -0

    Consider two cylindrical rods of identical dimensions, one of rubber and the other of steel. Both the rods are fixed rigidly at one end of the roof. A mass M is attached to each of the free ends at the centre of the rods.

  • Question 8
    1 / -0

    For an ideal liquid

  • Question 9
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    A copper and a steel wire of the same diameter are connected end to end. A deforming force F is applied to this composite wire which causes a total elongation of 1cm. The two wires will have then

  • Question 10
    1 / -0

    Bridges are declared unsafe after a long time of their use due to:

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