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NEET Sample Paper NEET Sample Test Paper-28

  • question_answer
    A small source of sound moves on a circle as shown in figure and an observer is sitting at O. Let \[{{n}_{1}},{{n}_{2}},{{n}_{3}}\] be the frequencies heard when the source is A, B and C respectively :-            

    A)  \[{{n}_{1}}>{{n}_{2}}>{{n}_{3}}\]                       

    B)  \[{{n}_{1}}={{n}_{2}}>{{n}_{3}}\]

    C)                  \[{{n}_{2}}>{{n}_{3}}>{{n}_{1}}\]                            

    D)  \[{{n}_{1}}>{{n}_{3}}>{{n}_{2}}\]

    Correct Answer: C

    Solution :

    In given diagram - At B source coming \[n\uparrow \] At A source going \[n\downarrow \]


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