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     EduGorilla 
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    Ultrasonic waves of frequency 3 x 105 Hz are passed through a given medium in which speed of sound is 10 times that in air (Speed of sound in air is 300 m/s). The wavelength of these waves in that medium will be of the order of

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    1. 1 cm
    2. 10 cm
    3. 100 cm
    4. 0.1 cm
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