Question

Which of the following frequencies falls in the range of RF waves used by commercial radio broadcasting stations?

A. 6,000 Hz
B. 6,000,000 Hz
C. 60 Hz
D. 600,000 Hz

Answer 1

The best answer would be the D)  600,000 Hz.

600,000 Hz  or  600 KHz. Yes.  Commercial broadcasters operate here.This is the '600' on your AM radio dial.