Question

4. Using the calibration curve equation generated in step 2, calculate the wavelength (in nm) of the four hydrogen lines. Report your answers to four significant digits. Wavelength, nm Correct Answer: 4043 Points: 0 More Details D-4A Scale Reading, m 2.21 5.48 12.51 35.31 D-4B D-4C D-4D

The answer to D-4A is 404.3. But I don't know how to get the answer from this. Here is the curve:

Answer 1

The answer is present in the graph itself. The equation is provided in the form of a straight line. the values have to be put in place of the variables and the answer can be derived.
rom Giveny.336ln +388.12 Ly=mxtc the For n- 2.2I ED-4A1 y=7.3361 X 2-21 t 3 88- 1 2 y 404.3 327=404.3nm yI waveleuy th in tue grapn Check Mges Apechal acale endirg

Aimilarly for D-48, F-3361 x5.48 + 388-12 4=428.3 nm 11 for D-4e y7. 3361 x l2-51 + 32 8.12 y 479. 89 nm for D-4D, y7.3361 X 35-31 + 388-12 - 647.15nm on'o)4