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  • Which of the following statement is NOT correct?Option: 1 Ground wave signals are more stable than sky wave signals.<div class='qna-opt

Which of the following statement is NOT correct?

Option: 1

Ground wave signals are more stable than sky wave signals.


Option: 2

The critical frequency of an ionospheric layer is the highest frequency that will be reflected back by the layer when it is verticaly  


Option: 3

Electromagnetic waves of frequencies higher than about 30 MHz cannot penetrate the ionosphere.


Option: 4

Skywave signals in the brodcast frequency range are stronger at night than in the day time 


Answers (1)

best_answer

 

 

 

 

 

The radio frequencies above 30 MHz has the tendency to penetrate the ionosphere making them unsuitable for long distance propagation.

So option C is correct answer.

 

Posted by

shivangi.shekhar

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