In short wave communication, waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 1011 m-3?
A. 2 MHz
B. 10 MHz
C. 12 MHz
D. 18 MHz
Answer:A
In short wave communication, waves of which of the following frequencies will be reflected back by the ionospheric layer having electron density 1011 m-3?
A. 2 MHz B. 10 MHz C. 12 MHz D. 18 MHz