OnlineCBT
Chemistry · Structure of atom
हिन्दीWhat is the frequency \( (\nu) \) of yellow light emitted from a sodium lamp having a wavelength \( (\lambda) \) of \( 580 \text{ nm} \)?
Correct answer · Option 3
\( 5.17 \times 10^{14} \text{ s}^{-1} \)
Explanation
Frequency \( \nu = \frac{c}{\lambda} = \frac{3.0 \times 10^8 \text{ m s}^{-1}}{580 \times 10^{-9} \text{ m}} = 5.17 \times 10^{14} \text{ s}^{-1} \).
