![The emission spectrum of gold shows a line of wavelength 2.676 x 10-7 m. How much energy is emitted as the excited electron falls to the lower energy level?](https://www.gkseries.com/blog/wp-content/uploads/2022/01/The-emission-spectrum-of-gold-shows-a-line-of-wavelength-2.676-x-10-7-m.-How-much-energy-is-emitted-as-the-excited-electron-falls-to-the-lower-energy-level.png)
Q. The emission spectrum of gold shows a line of wavelength 2.676 x 10-7 m. How much energy is emitted as the excited electron falls to the lower energy level?
A. 7.43 x 10-19 J
B. 5.30 x 10-20 J
C. 6.05 x 10-19 J
D. 3.60 x 10-20 J
Answer: 7.43 x 10-19 J