IDNLearn.com makes it easy to find the right answers to your questions. Our experts are ready to provide prompt and detailed answers to any questions you may have.

What is the wavelength of a photon with an energy of [tex][tex]$3.38 \times 10^{-19} J$[/tex][/tex]?

A. [tex][tex]$510 \, nm$[/tex][/tex]
B. [tex][tex]$460 \, nm$[/tex][/tex]
C. [tex][tex]$588 \, nm$[/tex][/tex]
D. [tex][tex]$416 \, nm$[/tex][/tex]


Sagot :

To determine the wavelength of a photon with an energy of [tex]\( 3.38 \times 10^{-19} \)[/tex] joules, we can use the relationship between energy [tex]\(E\)[/tex], Planck's constant [tex]\(h\)[/tex], and the speed of light [tex]\(c\)[/tex]. The formula to find the wavelength [tex]\(\lambda\)[/tex] of a photon is given by:

[tex]\[ \lambda = \frac{h \cdot c}{E} \][/tex]

where:
- [tex]\(E\)[/tex] is the energy of the photon,
- [tex]\(h\)[/tex] is Planck's constant ([tex]\(6.626 \times 10^{-34}\)[/tex] joule seconds),
- [tex]\(c\)[/tex] is the speed of light ([tex]\(3.00 \times 10^8\)[/tex] meters per second).

Step-by-Step Solution:

1. Identify the given values:
- Energy [tex]\(E = 3.38 \times 10^{-19}\)[/tex] joules
- Planck's constant [tex]\(h = 6.626 \times 10^{-34}\)[/tex] joule seconds
- Speed of light [tex]\(c = 3.00 \times 10^8\)[/tex] meters per second

2. Plug the values into the wavelength formula:

[tex]\[ \lambda = \frac{6.626 \times 10^{-34} \, \text{Js} \times 3.00 \times 10^8 \, \text{m/s}}{3.38 \times 10^{-19} \, \text{J}} \][/tex]

3. Calculate the wavelength [tex]\(\lambda\)[/tex]:

[tex]\[ \lambda = \frac{1.9878 \times 10^{-25} \, \text{Js} \cdot \text{m/s}}{3.38 \times 10^{-19} \, \text{J}} \][/tex]

[tex]\[ \lambda = 5.881 \times 10^{-7} \, \text{m} \][/tex]

4. Convert the wavelength from meters to nanometers:

[tex]\[ 1 \, \text{m} = 10^9 \, \text{nm} \][/tex]

[tex]\[ \lambda = 5.881 \times 10^{-7} \, \text{m} \times 10^9 \, \text{nm/m} \][/tex]

[tex]\[ \lambda = 588.1 \, \text{nm} \][/tex]

5. Compare the calculated wavelength to the given choices:
- A. [tex]\(510 \, \text{nm}\)[/tex]
- B. [tex]\(460 \, \text{nm}\)[/tex]
- C. [tex]\(588 \, \text{nm}\)[/tex]
- D. [tex]\(416 \, \text{nm}\)[/tex]

The wavelength most closely matches option C: [tex]\(588 \, \text{nm}\)[/tex].

Therefore, the correct answer is:
C. [tex]\(588 \, \text{nm}\)[/tex]