{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

The ground state is the lowest energy most stable

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: tal data for large wavelengths but failed for small ones. This was known as the “ultraviolet catastrophe.” Planck’s Constant Max Plank In 1900 Max Planck came up with a revolutionary way to resolve the problem by assuming that energy came in discrete amounts (quanta). This was the beginning of quantum mechanics. Each quantum of light is called a photon, and its energy is given by E = h f, where f is the frequency of the radiation and h is the constant of proportionality called Plank’s constant. The formula states that higher frequency light has proportionally more energy per photon. Einstein lent credence to Plank’s ideas by explaining the photoelectric effect in a similar manner. Robert Millikan did a series of experiments involving the photoelectric effect and calculated the constant: h = 6.626 × 10-34 J s. Before Planck light was considered to be a wave. Today we know it can be interpreted as either a particle or a wave. As a wave, bright light can be explained as a large am...
View Full Document

{[ snackBarMessage ]}