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What is the frequency, to the nearest tenth of a MHz, of a microwave with a...

What is the frequency, to the nearest tenth of a MHz, of a microwave with a wavelength of 70 cm?
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Answer #1

WE KNOW VELOCITY C= FREQUENCY * WAVELENGTH

                                FREQUENCY= C/ WAVELENGTH

                                                   = 3*10^8/ 70*10^-2

                                                  =4.28*10^8 HZ

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