A radiation has wavelength 4650Å. Calculate its wave number and frequency.

Explanation

To solve the problem of calculating the wave number and frequency of radiation with a wavelength of 4650 Å, we can follow these steps:

### Step 1: Convert Wavelength to Meters
Given the wavelength \( \lambda = 4650 \) Å (angstroms), we first need to convert this value into meters.

1 Å = \( 10^{-10} \) meters, so:
\[
\lambda = 4650 \, \text{Å} = 4650 \times 10^{-10} \, \text{m} = 4.65 \times 10^{-7} \, \text{m}
...