Someone is listening to a singer who is standing on a podium. The singer uses a set of speakers to broadcast her voice in all directions. The person listening cannot hear her very well, so he decides to walk closer to the podium. If his final distance to the podium is only half of his initial distance, what will be the final intensity of the singer's voice that the person hears compared to the
initial intensity that he hears?
1.twice that of the first
2.half that of the first
3.four times that of the first
4.one fourth that of the first
3
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