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Magnetic resonance imaging, or MRI, and positron emission tomography, or PET scanning, are two medical diagnostic...

Magnetic resonance imaging, or MRI, and positron emission tomography, or PET scanning, are two medical diagnostic techniques. Both employ electromagnetic waves. For these waves, find the ratio of the MRI wavelength (frequency = 6.92 107 Hz) to the PET scanning wavelength (frequency = 1.23 1020 Hz).

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Magnetic resonance imaging, or MRI, and positron emission tomography, or PET scanning, are two medical diagnostic techniques. Both employ electromagnetic waves. For these waves, find the ratio of the MRI wavelength (frequency = 7.30 107 Hz) to the PET scanning wavelength (frequency = 1.23 1020 Hz).

lamda1/lamda2 = f2/f1 = 1.23e20/7.3e7 =1.68 x 10^12

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