The frequencies of the primary magnetic field generated by worldwide thunderstorm

The frequencies of the primary magnetic field generated by worldwide thunderstorm

Q. The frequencies of the primary magnetic field generated by worldwide thunderstorm activity vary in the range

(A) 10-6 Hz -10-3 Hz                                             (B) 10-3 Hz -1 Hz

(C) 1 Hz -103 Hz                                           (D) 103 Hz -106 Hz

Ans: 1 Hz -103 Hz

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