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KVPY Sample Paper KVPY Stream-SX Model Paper-24

  • question_answer
    Two guns A and B can fire bullets at speed 1 km/s and 2 km/s respectively. From a point on a horizontal ground, they are fired in all possible directions. The ratio of maximum areas covered by the bullets fired by the two guns, on the ground is:

    A) 1 : 16

    B) 1 : 2

    C) 1 : 4 

    D) 1 : 8

    Correct Answer: A

    Solution :

    \[Area\propto \pi {{(Range)}^{2}}\propto {{v}^{4}}\] \[\therefore \]      \[\frac{{{A}_{1}}}{{{A}_{2}}}={{\left( \frac{1}{2} \right)}^{4}}.\]


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