PH103         PRINCIPLES OF PHYSICS III         SPRING 2011

Exam #1 will be Wednesday, April 6, during class period. You may use a 3"X5" card of notes, a calculator, and a ruler. The exam will contain any indices of refraction you may need.

The test will contain 10 multiple-choice questions (which will receive no partial credit and will require no justification), and 4 long-answer questions involving calculation, description, and/or explanation.  The long answer questions do require justification -- answer them as if you wanted to show a fellow student how to do that problem or understand that concept.  For computation questions, show equations, numbers plugged in, and answer.  Be sure your final answer is clear on all questions.

Make sure you are able to do all the types of things you were asked to do for this class, as in preflights, homework, PAL's, and Quizdom.

Some topics to review for exam #1 (may not be all-inclusive):

• Electromagnetic wave
• Period, frequency, wavelength, speed
• Range of visible wavelengths (in vacuum), which end is which
• Waves with longer/shorter wavelengths than visible
• speed of light in vacuum, in materials
• wavelength in material = wavelength in vacuum/n
• Polarization
• unpolarized vs polarized light
• ways polarized light can be made
• intensity of light thru polarizer(s)
• polarization of light thru polarizer(s)
• application to sunglasses
• Reflection
• Law of reflection (angles relative to normal)
• Images in plane mirror(s)
• Refraction
• Law of refraction (angles relative to normal)
• Index of refraction
• Total internal reflection
• Lenses
• Types of lenses
• Types of images
• Lens equation, magnification eqns, & sign conventions
• Ray diagrams
• Multiple lenses
• Camera
• Type of lens, image
• Focusing: position of lens
• Eye
• Type of lens, image
• Focusing: focal length of eye
• Near point, far point
• Corrective lenses
• Nearsighted, farsighted
• Type of lens, image, for correcting each
• Prescribing lenses
• Power (strength) of lens in diopters
• Simple magnifier
• Type of lens, image
• Angular size, angular magnification
• General eqn for ang. magnification
• Maximum ang. magnification eqn.  Also where is image?
• Relaxed-eye ang. magnification eqn.  Also where is image?
• Compound microscope
• Type of lenses, images
• Objective, eyepiece (also called ocular) lenses
• Magnification
• Two types of telescope
• Type of lenses, images
• Objective, eyepiece (also called ocular) lenses
• real vs virtual object
• Diffraction
• Circumstances for applicability of ray approximation
• Single slit
• resolution
• RP of microscope
• Interference
• Coherence
• Constructive/destructive
• 2-slit
• Many-slit/ diffraction grating
• spectral analysis