Calculate the wavelength frequency and wave number of a light whose speriod is ` 4xx10^(-8)` s .

Explanation

To solve the question of calculating the wavelength, frequency, and wave number of light with a given period of \(4 \times 10^{-8}\) seconds, we can follow these steps:

### Step 1: Calculate the Frequency
The frequency (\( \nu \)) is the inverse of the time period (\( T \)). The formula to calculate frequency is:
\[ \nu = \frac{1}{T} \]
Given that \( T = 4 \times 10^{-8} \) seconds, we can substitute this value into the formula:
...