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Mechanical Prop...

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  • Question 1
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    A wire is stretched by 0.01 m by a certain force F. Another wire of same material whose diameter and length are double to the original wire is stretched by the same force ? Then what will be its elongation?

  • Question 2
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    The Coefficient of linear expansion of brass & steel are α1 and α2 If we take a brass rod of length l1 and steel rod of length l2 at 0o C, their difference in length (l2l1) will remain the same at a temperature if.................

  • Question 3
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  • Question 4
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    An iron rod of length 2 m and cross-section area of 50 mm2 stretched by 0.5 mm, when a mass of 250 kg is hung from its lower end. What is young's modulus of the iron rod ?

  • Question 5
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    A load W produces an extension of 1 mm in a thread of radius r. Now if the load is made 4 w and radius is made 2r all other things remaining same the extension will becomes..............

  • Question 6
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  • Question 7
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    If the force constant of a wire is k. What is the work done in increasing the length of the wire by l?

  • Question 8
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    Wire A and B are made from the same material. A has twice the diameter and three times the length of B. If the elastic limits are not reached when each is stretched by the same tension, what is the ratio of energy stored in A to that in B ?

  • Question 9
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  • Question 10
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