La Rioja PAU Physics case studies
La Rioja PAU Physics · Put your knowledge to work in context.
This independent study page provides practice for La Rioja PAU Physics. Its editorial learning areas include Electromagnetic Fields; Waves Optics; Modern Physics; Gravity; Relativity; Experimental Reasoning. The questions develop subject knowledge and application through worked reasoning, distinctions between competing answers, and practical scenarios. Study the relevant guide before attempting a mixed set, then explain the evidence or calculation that supports each answer. Topics on this exam: Electromagnetic Fields, Waves Optics, Modern Physics, Gravity, Relativity, and Experimental Reasoning. The La Rioja PAU Physics case studies are 4 cases and about 1,529 words.
1Resolving the Sodium Doublet: Which Order, and Is the Grating at Fault?
A student uses a plane transmission grating marked '500 lines per mm' and 10 mm wide to try to resolve the sodium doublet at 589.0 nm and 589.6 nm. A collimator produces a parallel beam that falls on the full width of the grating, and the diffracted light is observed through a telescope.
699 words, about 3 min2Mass-spring measurements and an energy cross-check
A classroom group studies a horizontal cart attached to a spring on an idealized low-friction track. For this calculation the spring is massless, the track is level, friction is neglected and the restoring law is linear over all displacements used.
265 words, about 1 min3A loaded cell model and a changed external network
A theoretical direct-current source is modeled as an ideal electromotive force of 12.0 V in series with a fixed internal resistance of 1.0 ohm. Initially its external load is a 3.0 ohm resistor.
273 words, about 1 min4Comparing photon energy with a supplied work function
An idealized photoelectric experiment uses a clean hypothetical emitting surface with work function 2.30 eV. The surface name is deliberately unspecified: the work function is a supplied model parameter.
292 words, about 1 min