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NEET Sample Paper NEET Sample Test Paper-77

  • question_answer
    If a body falls in air, the resistance of air depends to a great extent on the shape of body. Three different shapes are given. Identify the combination of air resistances which truly represents the physical situation? (Cross sectional areas are the same)

    A)  \[1<2<3\]                   

    B)  \[2<3<1\]

    C)  \[3<2<1\]                   

    D)  \[3<1<2\]

    Correct Answer: C

    Solution :

    Figure 3 is stream lined, so air resistance of it will be least. For figure 1 surface area is maximum so air resistance for it is minimum. \[\therefore \] Correct order is \[3 < 2 < 1\].


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