Calculating Energy from Wavelengths: How do I Use the Equation?

[whatisphysics]

Homework Statement

I made a word doc, and attached it as a picture.

Homework Equations

The Attempt at a Solution

I calculated all the wavelengths, and plotted the values, but how do I find energy from the equation deltaE = hv?
Thanks in advance!

 

[Borek]

Looks to me like just a plug and chug, I am not sure what's the problem.

 

[whatisphysics]

Looks to me like just a plug and chug, I am not sure what's the problem.

But what is the R, and what is the c?

thanks.

 

[Borek]

R is what you are to find from the plot (so called Rydberg constant), c is the speed of light.

R² mentioned on the plot seems to be a correlation coefficient, this can be confusing.

 

[DeeNos]

To calculate energy, you need to use the equation E = hν, where E is energy, h is Planck's constant (6.626 x 10^-34 J*s), and ν is the frequency of the light. In this case, you have already calculated the wavelengths and plotted the values, so you can use the equation c = λν, where c is the speed of light (3.0 x 10^8 m/s) and λ is the wavelength. Rearranging this equation to solve for ν, you get ν = c/λ. Now you can plug this value into the original equation E = hν to calculate the energy for each wavelength. Remember to use the correct units (J for energy, m for wavelength, and s^-1 for frequency). I hope this helps!