Calculate the frequency and energy of photon whose wavelength is `3000Å`.

Explanation

To solve the problem of calculating the frequency and energy of a photon with a wavelength of 3000 Å, we will follow these steps:

### Step 1: Convert the wavelength from Angstroms to centimeters
The given wavelength is \( \lambda = 3000 \, \text{Å} \).

1 Ångström (Å) = \( 10^{-8} \) cm, thus:
\[
\lambda = 3000 \, \text{Å} = 3000 \times 10^{-8} \, \text{cm} = 3 \times 10^{-5} \, \text{cm}
...