Circle the Roman numeral corresponding to the best answer for each of the four q

Question

Circle the Roman numeral corresponding to the best answer for each of the four questions below. Which type of wave travels the slowest through a vacuum? a gamma a radio wave a microwave an x-ray all of the above; they all travel at the same speed. none of the above these waves cannot travel through a vacuum. Which frequency below could be that of infrared light? 1times10^-6 Hz 1 Hz 1 times 10^7 Hz 1 times 10^14 Hz all of the above; they all could be infrared light. none of the above. Which wavelength below could be that of a radio wave? 6 times 10^-8 m 6 times 10^-7 m 6 times 10^-6 m 6 m all of the above; they all could be radio waves none of the above. Visible light consists of an electric field only. a gravitational field only. a magnetic field only. Electric, gravitational, and magnetic fields perpendicular to one another. none of the above.

Explanation / Answer

here,

1)

Electromagnetic Waves.

Transmission of energy through a vacuum or using no medium is accomplished by electromagnetic waves,

caused by the osscilation of electric and magnetic fields. They move at a constant speed of 3 * 10^8 m/s.

so, the correct option is v) all of the above ;they all travel at the same speed

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