Answer: 5 m.
- A 50 m
- B 0.5 m
- C 5 m
- D 500 m
Correct answer: C. 5 m
Explanation: λ = c/f = (3 × 10<sup>8</sup>)/(6 × 10<sup>7</sup>) = 5 m.
In an electromagnetic wave, the oscillating electric field (E) and magnetic field (B) are perpendicular to each other and to the direction the wave travels - a purely transverse wave that needs no medium, unlike sound.
Concept context
Maxwell's equations, EM spectrum, properties, and applications of each band.