Question

Electron A falls from energy level X to energy level Y and releases blue light. Electron B falls from energy level Y to energy level Z and releases red light. Which transition, from X to Y or from Y to Z, has a greater energy difference?

Answer 1

the visual spectrum goes from wavelengths of 400 nm (blue) to 700 nm (red). Energy of a photon is proportional to frequency. Frequency and wavelength are inversely proportional. Given that, does a long wavelength have higher or lower energy than a shorter wavelength?