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A cell phone transmits at a frequency of 1.95×109 Hz . What is the wavelength of the electromagnetic wave used by this phone?

3 Answers

  • oubaas
    Lv 7
    1 month ago

    wavelength λ = c/f = 3.0*10^8 m/sec /(1.95*10^9) sec^-1 = 0.154 m (154 mm)

  • Zirp
    Lv 5
    1 month ago

    I assume you mean 1.95 x 10⁹   (use the ^-button), aka 1950 MHz

    300000 divided by 1950---> 154 mm

  • 1 month ago

    1.95×109 Hz ? that is about 212 Hz, much too low to be a cell phone frequency...

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