BCECE Medical BCECE Medical Solved Papers-2014

  • question_answer
    A man fires a large number of bullets in all directions with same speed \[\upsilon \]. The maximum area on the ground on which these bullets will spread is

    A)  \[\frac{\pi {{v}^{2}}}{g}\]

    B)  \[\frac{{{v}^{2}}}{{{g}^{2}}}\]     

    C)  \[\frac{\pi {{v}^{4}}}{{{g}^{2}}}\]    

    D)  \[\frac{{{v}^{4}}}{{{g}^{2}}}\]

    Correct Answer: C

    Solution :

    For maximum area \[[\theta ={{45}^{o}}]\] Range \[{{R}_{\max }}=\frac{{{v}^{2}}}{g}\] \[\because \] Area in which bullet will spread \[=\pi {{r}^{2}}\] \[\therefore \] Maximum area \[\pi R_{\max }^{2}=\pi {{\left( \frac{{{v}^{2}}}{g} \right)}^{2}}=\frac{\pi {{v}^{4}}}{{{g}^{2}}}\]


You need to login to perform this action.
You will be redirected in 3 sec spinner