1.

(A) :Sometimes HF waves can also pass through ionosphere. (R) : The sky wave propagation depends on the vertical angle with which the radio waves are radiated from the antenna.

Answer»

Both 'A' and 'R' are TRUE and 'R' is the CORRECT explanation of 'A'.
Both 'A' and 'R' are true and 'R' ISNOT the correct explanation of 'A'.
A' is true abd 'R' false
A' is false and 'R' is false

Answer :A


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