OnlineCBT
Chemistry · Structure of atom
हिन्दीCalculate the frequency of violet light having a wavelength of \( 400 \text{ nm} \).
Correct answer · Option 2
\( 7.50 \times 10^{14} \text{ Hz} \)
Explanation
Using \( \nu = \frac{c}{\lambda} = \frac{3.00 \times 10^8}{400 \times 10^{-9}} = 7.50 \times 10^{14} \text{ Hz} \).
