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BVP Medical BVP Medical Solved Paper-2011

  • question_answer
    A wire of length 2 m is made from \[10\text{ }c{{m}^{3}}\] of copper. A force F is applied, so that its length in creases by 2 mm. Another wire of length 8 m is made from the same volume of copper. If the force F is applied to it, its length will increase by

    A)  0.8cm                                  

    B)  1.6cm

    C)  2.4 cm                                 

    D)  3.2 cm

    Correct Answer: D

    Solution :

                    Volume = area x length In 1st case \[i\alpha \sqrt{\theta }\] or    \[\gamma \]     ...(i) In II nd case \[\beta \] or            \[\alpha \]  ?.(ii) Now, \[{{H}_{2}}\], where F and Y are same. We have \[{{O}_{2}}\] \[F=i(i\times B)=0\]        \[\tan \theta =\frac{V}{H}\]


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