PHY 111, Fall, 2005

Week 7

 

  Objectives
bulletYou should be able to calculate the amount of energy carried by a photon given its wavelength. 
bulletYou should be able to discuss in detail the process by which an electron changing energy levels produces emission and absorption spectra including why the spectra of each atom is unique
bulletYou should be able explain what the Doppler effect is and what it can help us learn about stars from their spectra
bulletYou should be able to describe how the basic kinds of telescopes are made.
bulletYou should be able to define the following terms: diffraction, chromatic aberration, refraction.
bulletYou should know what determines the diffraction limit of a telescope.
bulletYou should be able to explain:
bullethow a mirror or lens forms an image
bulletwhat causes refraction and chromatic aberration
bulletwhy all large optical telescopes are now reflecting telescopes
bulletwhy large telescopes are better than small ones
Tuesday Group work on blackbody spectra.  Discussion of how emission and absorption spectra are created. 

Outside of class: Read Chapter 5 sections 1-4. Go over the review questions for Ch. 4.  Turn in Ch. 4 questions to ponder 12 and 13 on Thursday.
Thursday Illustrate basic optical principles: reflection, refraction, image formation, focusing of light.  Begin discussion of types of optical telescopes.

Outside of class: Read Chapter 5 sections 5-8.  Complete Ch. 5 questions to ponder 4 and 10 to be turned in next Tuesday.