Why does a flute have a higher frequency than a tuba?

A Flute produces a higher frequency than a tuba primarily due to its smaller size and design. The flute has a shorter air column, which results in higher pitch sounds when air is blown across its opening. In contrast, the tuba, being larger and having a longer air column, generates lower frequency sounds. This difference in physical dimensions directly affects the wavelengths of the sound waves produced, leading to the flute's higher pitch.