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JEE Main & Advanced Physics Wave Mechanics Question Bank Basics of Mechanical Waves

  • question_answer
    If the density of oxygen is 16 times that of hydrogen, what will be the ratio of their corresponding velocities of sound waves      [KCET 1999]

    A)            1 : 4                                          

    B)            4 : 1

    C)            16 : 1                                        

    D)            1 : 16

    Correct Answer: A

    Solution :

               \[v=\sqrt{\frac{\gamma P}{\rho }}\Rightarrow \frac{{{v}_{{{O}_{2}}}}}{{{v}_{{{H}_{2}}}}}=\sqrt{\frac{{{\rho }_{{{H}_{2}}}}}{{{\rho }_{{{o}_{2}}}}}}=\sqrt{\frac{1}{16}}=\frac{1}{4}\]


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