An audible sound comes from an audible sound range, which is a specific range of frequencies that can be heard by human ears.
1. Which one of the following frequencies of a wave in the air can be heard as an audible sound by the human ear?
A. 1,000 Hz
B. 100,000 Hz
C. 0.10 Hz
D. 10 Hz
2. During the process of steel production, the flaws in steel casting are detected by
A. ultrasonic vibrations.
B. longitudinal vibrations.
C. infrasonic vibrations.
D. resonant vibrations.
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What scientific concept do you need to know in order to solve this problem?
Our tutors have indicated that to solve this problem you will need to apply the Sound Waves concept. You can view video lessons to learn Sound Waves. Or if you need more Sound Waves practice, you can also practice Sound Waves practice problems.