This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Oscillating sine wave. en The relationship between period frequency and amplitude for sine wave is illustrated in this image National Institute of Standards and Technology NIST nist gov cfm National Institute of Standards and Technology NIST other versions PDUSGov Uncategorized June
Page 2023 Free-images.com. All images are Public Domain