Originally Posted by

**morelemonzanybody?** Hi:

I'm studying quantum physics.

I'm given a wavelength and asked what the work function is in electron volts.

The answer requires that I take the equation:

⦶=hf

where h is planck's constant and f is frequency.

Next step is to change this equation to:

⦶=hc/wavelength

It is this conversion of equations that is confusing me.

How and why is this done. What is the relationship between them. And, is this anything to do with f=1/T? And, why is the universe exponentially more interesting the more you study it?

thanks