Answer :
The difference between the lowest frequency heard by a student in the classroom and the initial frequency of the sound generator depends on both the initial frequency of the sound generator and the properties of the medium through which the sound waves propagate.
Various factors such as absorption and reflection can affect the frequency of the sound waves that reach the student's ears.
It is important to consider both the source of the sound and the environment in order to understand the difference in frequencies.
The lowest frequency heard by a student in the classroom is determined by the initial frequency of the sound generator and the properties of the medium through which the sound waves propagate.
When a sound is generated, it produces waves that travel through the air. The frequency of a sound wave refers to the number of complete cycles of compression and rarefaction that occur in one second. The unit of frequency is hertz (Hz).
The lowest frequency heard by a student in the classroom is influenced by the initial frequency of the sound generator. If the sound generator produces a low-frequency sound wave, then the lowest frequency heard by the student will also be low.
Conversely, if the sound generator produces a high-frequency sound wave, the lowest frequency heard by the student will also be high.
However, the initial frequency of the sound generator is not the only factor that determines the lowest frequency heard by a student in the classroom. The properties of the medium through which the sound waves travel also play a role.
For example, if the classroom has a lot of soft furnishings such as curtains and carpets, these materials can absorb and dampen the sound waves, resulting in a lower frequency being heard by the student.
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