NATS 1745 Midterm: MIDTERM Q&A - WT - January 2016

• School: York University
• Department: Natural Science
• Course: NATS 1745
• Professor: Robin Kingsburgh

Document Summary

Stefan-boltzmann law tells us about the spectra of black bodies is that hotter the object is the brighter that it will be and vice versa. Rutherford"s gold foil experiment discovered that positively charged alpha particles would sometimes rebound when shot at a layer of gold layer. It does this when electrons absorb a photon and jumps from a lower to a higher orbit. The energy of the photon converted to internal energy within the atom. It does this when electrons jump from a higher to a lower orbit and emits a photon. Internal energy within the atom is converted to the energy of the photon. A high-energy orbit dropping to a low energy orbit and creating a photon can explain the bright line spectra. The dark line spectra/ absorption lines can be explained by an e- in a low energy orbit absorbing a photon of specific color/wavelength/energy and jumping to a higher energy orbit.