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Critical Frequency MCQs

Practice Critical Frequency MCQs with four options, answers and explanations for focused Electronics & Telecommunication Engineering revision.

Question 1
Antenna & Wave PropagationCritical Frequency

The critical frequency of an ionospheric layer is the highest frequency that is returned to Earth for?

  • AVertical incidence
  • BHorizontal incidence only
  • CAny angle without limit
  • DGround-wave propagation
Report an error
Correct Answer: A. Vertical incidence
Explanation: Critical frequency is defined for vertical incidence on a particular ionospheric layer.
Reference: Standard antenna and wave propagation: critical frequency