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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2000

  • question_answer
    What will be the wave velocity, if the radar gives 5.4 waves per minute and wavelength of the given wave is 10 m?

    A)  4m/s                                    

    B)  6m/s

    C)  0.9m/s                

    D)         5m/s

    Correct Answer: C

    Solution :

    Frequency n = 5.4 per minute \[=\frac{5.4}{60}Hz\] Velocity\[\upsilon =n\lambda \] \[=\frac{5.4}{60}\times 10=0.9\,m/s\]


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