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When a wave is incident normally then the acceptable highest frequency at which signal can be returned is the ______

When a wave is incident normally then the acceptable highest frequency at which signal can be returned is the ______ Correct Answer critical frequency

When a wave is incident normally then the acceptable highest frequency at which signal can be returned is the critical frequency. Beyond critical frequency, wave is penetrated into another region. When the frequency is greater than critical frequency, still some part is returned back by varying the angle of incidence and this frequency is called MUF.

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