When an electromagnetic wave enters an ionized layer of earth’s atmosphere present in…
Physics · NEET · NTA Exams — Electromagnetic Waves
When an electromagnetic wave enters an ionized layer of earth’s atmosphere present in ionosphere_____.
- the electron cloud will not oscillate in the elec-tric field of the wave
- the electron cloud will oscillate in the electric field of wave in the phase of sinusoidal electro-magnetic wave
- the electron cloud will oscillate in the electric field of wave in the opposite phase of sinusoidal electromagnetic wave
- the electron cloud will oscillate in the electric field of wave with a phase retardation of 90° for a sinusoidal electromagnetic wave.
Answer
(D) the electron cloud will oscillate in the electric field of wave with a phase retardation of 90° for a sinusoidal electromagnetic wave.
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