Technician exam question T3B06
Subelement T3, RADIO WAVE PROPAGATION· Group T3B
What is the formula for converting frequency to approximate wavelength in meters?
- A.Wavelength in meters equals frequency in hertz multiplied by 300
- B.Wavelength in meters equals frequency in hertz divided by 300
- C.Wavelength in meters equals frequency in megahertz divided by 300
- D.Wavelength in meters equals 300 divided by frequency in megahertz (correct answer)
WhyFrequency converts to approximate wavelength in meters with the formula: wavelength in meters equals 300 divided by frequency in megahertz. Wavelength in meters is approximately 300 divided by frequency in megahertz, a shortcut that comes directly from the speed of light (approximately 300,000,000 meters per second) divided by frequency in hertz, with the units simplified down to megahertz and meters, answer D. A and B use the wrong units (hertz instead of megahertz) and the wrong operation, and C divides by 300 instead of dividing 300 by the frequency, inverting the actual relationship.
Published 2026-08-28 · Last updated 2026-08-28 · Question text is verbatim from the 2026-2030 NCVEC Element 2 pool (public domain); the explanation above is original writing, see our methodology.
Related questions
- T3B01What is the relationship between the electric and magnetic fields of an electromagnetic wave?
- T3B02What property of a radio wave defines its polarization?
- T3B03What are the two components of a radio wave?
- T3B04What is the velocity of a radio wave traveling through free space?
- T3B05What is the relationship between wavelength and frequency?