JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2015

  • question_answer
    If \[\frac{1}{2}\]is the magnitude of the moment about the point \[\frac{-1}{2}\]of a force \[\frac{1}{3}\]acting through the point \[\frac{-1}{3}\], then the value of a is

    A) \[\pm \text{ }1\]                                             

    B) \[\pm 2\]

    C) \[\pm \text{ }3\]                                             

    D) \[\pm \text{ }4\]

    Correct Answer: B

    Solution :

    Let M be the moment of the force\[{{n}_{2}}=4\xrightarrow{{}}{{n}_{1}}=1\]acting through the point\[{{n}_{2}}=2\xrightarrow{{}}{{n}_{2}}=1\]about the point\[{{n}_{2}}=3\xrightarrow{{}}{{n}_{1}}=2\] Then, \[4p\] \[4d\]    \[4f\] \[\text{CsCl}\]   \[{{N}_{2}}{{O}_{4}}\] \[{{N}_{2}}{{O}_{4}}\]    \[N{{O}_{2}}\] \[\text{IUPAC}\]              \[C{{H}_{3}}-C\equiv CH\xrightarrow[1%HgS{{O}_{4}}]{40%{{H}_{2}}S{{O}_{4}}}A\xrightarrow{Isomerisation}\] \[C{{H}_{3}}-\underset{\begin{smallmatrix}  || \\  O \end{smallmatrix}}{\mathop{C}}\,-C{{H}_{3}}\] \[C{{H}_{3}}-\underset{\begin{smallmatrix}  || \\  Br \end{smallmatrix}}{\mathop{CH}}\,-C{{H}_{3}}\xrightarrow{Alc.KOH}X\xrightarrow[\begin{smallmatrix}  Otganice \\  Perixide \end{smallmatrix}]{HBr}Y\]                         \[\overset{\bullet }{\mathop{\text{O}}}\,\] \[\overset{\bullet }{\mathop{Cl}}\,\]     \[\overset{\bullet }{\mathop{C{{H}_{3}}}}\,\] \[\overset{\bullet }{\mathop{OH}}\,\]   \[PC{{l}_{3}}(g)+C{{l}_{2}}(g)P{{C}_{5}}(g),\]


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