Calculate the wavelength (in nanometers) emitted by a photon during a transition from n =6 to n = 4 state in the H -atom.

Explanation

To calculate the wavelength emitted by a photon during a transition from n = 6 to n = 4 in a hydrogen atom, we can use the Rydberg formula for hydrogen:

\[ \frac{1}{\lambda} = RZ^2 \left( \frac{1}{n_1^2} - \frac{1}{n_2^2} \right) \]

Where:
- \( \lambda \) is the wavelength,
...