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Q: The distance travelled by an electromagnetic wave in one second is called________.
  • A. wave velocity
  • B. wave length
  • C. frequency
  • D. period
Correct Answer: Option A - Velocity of wave–The distance travelled by a wave in one second is called velocity of the wave. The SI unit for the velocity of a wave is meters per second (m/s). Wavelength–The distance between two nearest crests of a wave is called its wavelength. Frequency–The number of complete waves produced in one second is called frequency of the wave. The unit of frequency is hertz.
A. Velocity of wave–The distance travelled by a wave in one second is called velocity of the wave. The SI unit for the velocity of a wave is meters per second (m/s). Wavelength–The distance between two nearest crests of a wave is called its wavelength. Frequency–The number of complete waves produced in one second is called frequency of the wave. The unit of frequency is hertz.

Explanations:

Velocity of wave–The distance travelled by a wave in one second is called velocity of the wave. The SI unit for the velocity of a wave is meters per second (m/s). Wavelength–The distance between two nearest crests of a wave is called its wavelength. Frequency–The number of complete waves produced in one second is called frequency of the wave. The unit of frequency is hertz.