The problem asks to calculate the wavelength of a photon released when an electron jumps from one energy level to another, given the energy released and the values of Planck's constant ($h$) and the speed of light ($c$). The energy released is $3.2 \times 10^{-19} J$, Planck's constant is $6.6 \times 10^{-34} J s$, and the speed of light is $3.0 \times 10^8 m/s$.

Applied MathematicsPhysicsQuantum MechanicsPhotonWavelengthEnergyPlanck's ConstantSpeed of LightFormula ApplicationUnits Conversion
2025/4/13

1. Problem Description

The problem asks to calculate the wavelength of a photon released when an electron jumps from one energy level to another, given the energy released and the values of Planck's constant (hh) and the speed of light (cc). The energy released is 3.2×1019J3.2 \times 10^{-19} J, Planck's constant is 6.6×1034Js6.6 \times 10^{-34} J s, and the speed of light is 3.0×108m/s3.0 \times 10^8 m/s.

2. Solution Steps

We can use the formula that relates the energy of a photon to its wavelength:
E=hfE = hf
where EE is the energy of the photon, hh is Planck's constant, and ff is the frequency of the photon.
We also know that the speed of light (cc) is related to the frequency (ff) and wavelength (λ\lambda) of the photon by the formula:
c=fλc = f\lambda
From this, we can express the frequency as:
f=cλf = \frac{c}{\lambda}
Substituting this expression for ff into the first equation, we get:
E=hcλE = h \frac{c}{\lambda}
Now, we can solve for the wavelength λ\lambda:
λ=hcE\lambda = \frac{hc}{E}
Plugging in the given values:
h=6.6×1034Jsh = 6.6 \times 10^{-34} J s
c=3.0×108m/sc = 3.0 \times 10^8 m/s
E=3.2×1019JE = 3.2 \times 10^{-19} J
λ=(6.6×1034Js)(3.0×108m/s)3.2×1019J\lambda = \frac{(6.6 \times 10^{-34} J s)(3.0 \times 10^8 m/s)}{3.2 \times 10^{-19} J}
λ=19.8×10263.2×1019m\lambda = \frac{19.8 \times 10^{-26}}{3.2 \times 10^{-19}} m
λ=6.1875×107m\lambda = 6.1875 \times 10^{-7} m
λ=618.75×109m\lambda = 618.75 \times 10^{-9} m
λ=618.75nm\lambda = 618.75 nm

3. Final Answer

The wavelength of the photon is 618.75×109m618.75 \times 10^{-9} m or 618.75nm618.75 nm.

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