Final answer:
The highest pitch that can be heard by a person with normal hearing among the provided frequencies would be the sound wave with a frequency of 15,000 Hz, as it is the highest frequency within the typical human audible range of 20 Hz to 20,000 Hz.
Step-by-step explanation:
The question pertains to the frequency of sound waves and how it relates to pitch perception in humans. We know from physics that as the frequency of a sound wave increases, the pitch of the sound is heard as being higher. According to the human range of hearing, people can typically perceive sounds with frequencies from about 20 Hz to 20,000 Hz. However, as we age, our ability to hear high frequencies declines, and women tend to be better at hearing these high frequencies.
Comparing the given frequencies, 10,000 Hz, 30,000 Hz, 15,000 Hz, and 50 Hz, the second frequency (30,000 Hz) is beyond the normal range of human hearing which is up to 20,000 Hz, thus the sound wave with a frequency of 15,000 Hz will be heard at the highest pitch by a person with normal hearing since it is the highest frequency within the audible range.
Moreover, we can disregard the options of 10,000 Hz and 50 Hz since they are lower than 15,000 Hz, and the sound wave with a frequency of 30,000 Hz, as it is in the ultrasound range, which is beyond human hearing capabilities.