What does the Greek letter ν (nu) represent in physics?

In physics, the Greek letter ν (nu) usually represents frequency.

Frequency tells us how many times something happens in one second — like how many waves pass by or how often a sound vibrates.

For example:

In waves (light, sound, or water waves), ν shows how many wave cycles occur per second.

It is measured in Hertz (Hz), which means "cycles per second."

Quick Facts:

Frequency (ν) = Number of cycles / Time

Higher ν means faster vibrations or waves

Used in many areas like sound waves, light waves, and electromagnetic radiation

Final Answer:

The Greek letter ν (nu) in physics represents frequency, which is how often something repeats in one second.