Horn notes are produced by establishing a stationary wave in an air column. For the lowest note from a horn, a node occurs at the mouthpiece and an antinode occurs at the bell. The frequency of this note is $75\,\text{Hz}$. What are the frequencies of the next two notes above this one for this air column?
- Afirst higher note $113\,\text{Hz}$, second higher note $150\,\text{Hz}$
- Bfirst higher note $150\,\text{Hz}$, second higher note $225\,\text{Hz}$
- Cfirst higher note $150\,\text{Hz}$, second higher note $300\,\text{Hz}$
- Dfirst higher note $225\,\text{Hz}$, second higher note $375\,\text{Hz}$