What do the numbers and letters on a tuning fork represent?

The letters represent the pitch; the numbers represent the number of times the tuning fork vibrates per second.

The tuning fork is a Y-shaped steel or aluminum alloy loudspeaker, and various tuning forks can emit pure tones of different frequencies when they vibrate due to their different qualities and fork arm lengths and thicknesses. It is used in musical instruments, electro-mechanical watches, medical treatment, radar gun calibration, industry.

Related Information:

In physics teaching, the tuning fork can be used to demonstrate the nature of mechanical waves. Tap the tuning fork to collect a wave spectrum graph. Experimentally, it is found that when the tuning fork is lightly tapped, the amplitude of the tuning fork is small and the amplitude of the wave spectrogram is small.

Tap the tuning fork, the amplitude of the tuning fork is large, the amplitude of the spectrogram is large, the sound from the tuning fork is also large. Note: The loudness of a mechanical wave is related to the amplitude of the tuning fork's mechanical wave. The larger the amplitude, the greater the loudness; the smaller the amplitude, the smaller the loudness.