The frequency of a sound wave increases from 31 000 Hz to 32 000 Hz.
What is the nature of the wave and how does it sound to a human with normal hearing?
1 )
It is a longitudinal wave with a decreasing pitch.
2 )
It is a transverse wave with an increasing pitch.
It is a longitudinal wave that cannot be heard by a human with normal hearing.
4 )
It is a transverse wave that cannot be heard by a human with normal hearing.
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