Mathematics · Electromagnetic Waves
The electric field of a plane electromagnetic wave oscillates sinusoidally with a frequency of 2.0 × 1010 Hz and an amplitude of 60 Vm-1. The wavelength of the wave is (given c = 3 × 108 ms-1):
- 11.5 cm✓
- 20.66 cm
- 30.15 cm
- 40.015 cm
Correct answer
1.5 cm
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