The critical frequency of 'F' layer is greater than 30 MHz. – McqOptions

MCQOPTIONS

1.	The critical frequency of 'F' layer is greater than 30 MHz.
A.	1
B.
C.	Z0 is an ac characteristic that is the same for any length of time
D.	The characteristic impedance can be measured approximately with a sensitive ohm meter
Answer» C. Z0 is an ac characteristic that is the same for any length of time

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