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NEET NEET SOLVED PAPER 2019

  • question_answer
    A small hole of area of cross-section 2 \[m{{m}^{2}}\]is present near the bottom of a fully filled open tank of height 2 m. Taking\[g=10\text{ }m/{{s}^{2}}\], the rate of flow of water through the open hole would be nearly:                               [NEET 5-5-2019]

    A) \[2.23\times {{10}^{6}}\text{ }{{m}^{3}}/s\] 

    B) \[6.4\times {{10}^{6}}\text{ }{{m}^{3}}/s\]

    C) \[12.6\times {{10}^{6}}\text{ }{{m}^{3}}/s\] 

    D) \[8.9\times {{10}^{6}}\text{ }{{m}^{3}}/s\]

    Correct Answer: C

    Solution :

    \[Q=AV\] \[=A\text{ }\sqrt{2gh}\] \[=2\times {{10}^{6}}\text{ }\sqrt{2\times 10\times \text{ }2}\] \[=2\times {{10}^{6}}\sqrt{40}\] \[=12.6\times {{10}^{6}}\]


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