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2. A emits radio signals of 100 MHz and moves towards an observer with a speed of 9Kms The apparent change in the frequency of the signals is 1) 3KHz 2) 30KHz 3) 3MHz 4) 30MHz
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SOLVED: (a) What is the wavelength of 100-MHz radio waves used in an MRI unit? (b) If the frequencies are swept over a ± 1.00 range centered on 100 MHz, what is
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