Question

q.8. calculate the frequency of a photon with a wavelength of 337nm. given: find : conceptual plan : solve:

Explanation:

Step1: Identify the relevant formula

The speed - of - light formula is $c = \lambda
u$, where $c$ is the speed of light ($c = 3\times10^{8}\ m/s$), $\lambda$ is the wavelength, and $
u$ is the frequency. We need to solve for $
u$, so $
u=\frac{c}{\lambda}$.

Step2: Convert the wavelength to SI units

Given $\lambda = 337\ nm=337\times10^{- 9}\ m$.

Step3: Calculate the frequency

Substitute $c = 3\times10^{8}\ m/s$ and $\lambda = 337\times10^{-9}\ m$ into the formula $
u=\frac{c}{\lambda}$.
$
u=\frac{3\times10^{8}\ m/s}{337\times10^{-9}\ m}\approx8.90\times10^{14}\ Hz$

Answer:

$8.90\times10^{14}\ Hz$