Question

What is the energy of a photon with a frequency of `5.00*10^14` hertz?

Answer 1

I got: `3.31xx10^-19J`

Explanation:

We can use Einstein's Formula for the energy `E`:

`color(red)(E=hf)`

Where:
`h=6.63xx10^-34Js` is Planck's constant;
`f=5.00xx10^14Hz` is the frequency.

You get:

`E=6.63xx10^-34*5.00xx10^14=3.31xx10^-19J`