Questions: If a photon has energy of 3.74 × 10^-26 J, what is the wavelength of this photons in meters?
h=6.626 × 10^-34 Js
Transcript text: 21
Formula 3 points
If a photon has energy of $3.74 \times 10^{-26} \mathrm{~J}$, what is the wavelength of this photons in meters?
\[
\mathrm{h}=6.626 \times 10^{-34} \mathrm{Js}
\]
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Solution
Solution Steps
Step 1: Identify the Relationship Between Energy and Wavelength
The energy of a photon is related to its wavelength by the equation:
\[
E = \frac{hc}{\lambda}
\]
where \( E \) is the energy of the photon, \( h \) is Planck's constant, \( c \) is the speed of light in a vacuum (\(3.00 \times 10^8 \, \text{m/s}\)), and \( \lambda \) is the wavelength.
Step 2: Rearrange the Equation to Solve for Wavelength
Rearrange the equation to solve for the wavelength \( \lambda \):
\[
\lambda = \frac{hc}{E}
\]
Step 3: Substitute the Known Values
Substitute the given values into the equation:
\[
\lambda = \frac{(6.626 \times 10^{-34} \, \text{Js})(3.00 \times 10^8 \, \text{m/s})}{3.74 \times 10^{-26} \, \text{J}}
\]
Step 4: Calculate the Wavelength
Perform the calculation to find the wavelength \( \lambda \).