passwella.
Menu

JAMB Physics 1984 Question 45

Question 45

Electromagnetic Spectrum

Radio waves have a velocity of 3 × 108 m s−1. A radio station sends out a broadcast on a frequency of 800 kHz. The wavelength of the broadcast is

  1. A.375.0 m
  2. B.267.0 m
  3. C.240.0 m
  4. D.37.5 m
  5. E.26.7 m
Show the answer and explanation

Answer: A (375.0 m)

Explanation

λ = v/f = 3 × 108 ÷ (800 × 103) = 375 m.