Why are we able to hear short wave broadcasts better than long wave broadcasts?
(A) Short waves are more energetic than long waves.
(B) Short waves are unaffected by atmospheric disturbances.
(C) Short wave broadcasts are made by nearby radio stations.
(D) By convention, short waves are meant for long distances, whereas long waves are reserved for short distances.
Correct Answer : Short waves are more energetic than long waves.
Question Asked : SSC Combined Graduate Level Prelim Exam 2004
Explanation : Short wave radio is used for broadcasting of voice and music, and long-distance communication to ships and aircraft, etc. being more energetic than long waves. It uses the upper MF (medium frequency) and all of the HF (high frequency) portion of the radio spectrum, between 1.800-30.000 kHz.
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