29.1 Quantization of Energy

The visible spectrum of sunlight shows a range of colors from red to violet. This spectrum has numerous dark lines spread throughout it. Noting that the surface of the Sun is much cooler than the interior, so that the surface is comparable to a cool gas through which light passes, which of the following statements correctly explains the dark lines?

1. The cooler, denser surface material scatters cer…

A LiBr molecule oscillates with a frequency of $1 . 7 \times \text{10}^{\text{13}} \text{ Hz}.$ (a) What is the difference in energy in eV between allowed oscillator states? (b) What is the approximate value of $n$ for a state having an energy of 1.0 eV?

A physicist is watching a 15-kg orangutan at a zoo swing lazily in a tire at the end of a rope. He (the physicist) notices that each oscillation takes 3.00 s and hypothesizes that the energy is quantized. (a) What is the difference in energy in joules between allowed oscillator states? (b) What is the value of $n$ for a state where the energy is 5.00 J? (c) Can the quantization be observed?