NEET Sample Paper NEET Sample Test Paper-27

  • question_answer A raw egg and a hard boiled egg are made to spin on a table with the same angular speed about the same axis. The ratio of the time taken by the two to step will be:

    A)  \[=1\]                        

    B)  \[<1\]

    C)  \[>1\]                        

    D)  None of these

    Correct Answer: B

    Solution :

    A raw egg has some fluid in it and a hard boiled egg in solid from inside. On spining the fluid is throw outward therefore \[Ir>Ib\] or \[\frac{Ib}{Ir}.<1\] Sure \[I\times \omega \] constant \[\therefore \]  or \[\omega r<\omega b\] \[\Rightarrow \]            \[\frac{\omega r}{\omega b}=\frac{Ib}{Ir}<1\]    \[\left( \because \,\,\omega =\frac{\theta }{t} \right)\]             \[\frac{tb}{tr}<1\]

adversite


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