Which of the following statements is wrong?

A Ground wave propagation can be sustained at frequencies 500 kHz to 1500kHz
B Satellite communication is useful for the frequencies above 30 MHz
C Space wave propagation takes place through tropospheric space
D Skywave propagation is useful in the range of 30 to 40 MHz

Correct Answer: Skywave propagation is useful in the range of 30 to 40 MHz

Skywave propagation is useful for radio-waves of frequencies ranging from 2 MHz to 30 MHz. Higher frequencies than this value cannot be reflected by the ionosphere. All the other statements are correct.
Bissoy MCQ
#Class 12 Physics #Communication Systems #Propagation of Electromagnetic Waves

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