Which of the following statements is wrong?
A. Ground wave propagation can be sustained at frequencies 500 kHz to 1500 kHz.
B. Skywave propagation is useful in the range of 30 to 40 MHz.
C. The phenomenon involved in skywave propagation is total internal reflection.
D. Satellite communication is useful for the frequencies above 30 MHz.
Answer:B
Which of the following statements is wrong?
A. Ground wave propagation can be sustained at frequencies 500 kHz to 1500 kHz. B. Skywave propagation is useful in the range of 30 to 40 MHz. C. The phenomenon involved in skywave propagation is total internal reflection. D. Satellite communication is useful for the frequencies above 30 MHz.