Electromagnetic Spectrum & Atmosphere
A signal emitted by an antenna from a certain point can be received at another point of the surface in the form of
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Answer: (d)
- A ground wave travels along the Earth's surface to the receiver.
- A sky wave is reflected back to the Earth by the ionosphere.
- Both modes can carry the signal to another point on the surface.
- So the answer is (d) both sky wave and ground wave.