Electromagnetic waves: wavelength, frequency and speed

1. 1An electromagnetic wave has a wavelength of 1 mm. State the type of electromagnetic wave.

   1. AMicrowaves
   2. BRadiowaves
   3. CUv rays
2. 2A radio wave with a frequency of 6x10e7 Hz has a wavelength of 5m in a vaccum. Calculate the speed of this wave.

   1. A6x10e7 x 5
   2. B3x10e8 m/s
   3. C30x10e7 m/s
3. 3Choose your answers to this question from the numbers below. State the speed of visible light in the following materials.

   1. A3x10e8
      2.25x10e8
   2. B6.2x10e8
      5.25x10e8

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Test sobre Sin título, creado por Trehan Moonemall el 15/11/2014.

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Trehan Moonemall

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