Question

A ground receiver receives a signal at $5\, MHz$, transmitted by a ground transmitter at a height of $320\, m$, which is $110\, km$ away from it. Then it can communicate through (radius of earth $R \,= \,6400 \,km$)

• A. space waves
• B. ground waves
• C. sky waves
• D. both sky and ground waves

Answer 1

Answer: (B)

ground waves

Answer 2

The frequency of received signal $5\, MHz$. which lies between 2 to $3\, MHz$ and this is the range of sky wave communication as well as ground wave communication.