Objectives

• follow the discussion in the text on the discovery of x-rays
• derive the ratio of electron's charge to mass, e/m
• understand the interaction of forces in Milikan's oil drop experiment
• state the difference between Balmer's and Rydberg's equations
• use the equations of Balmer and Rydberg to determine wavelengths
• cite evidence of quantization in experiments and in nature
• note two important observations of a blackbody curve
• calculate wavlengths of maximum intensity using Wien's displacement law
• calculate power emitted if give the temperature using the Stefan-Boltzmann law
• show that Planck's radiation law avoids the ultraviolet catastrophe
• know five experimental facts aboutthe photoelectric effect
• write down the equation for the energy quantum of a photon
• relate the Duane-Hunt rule to the conservation of energy
• explain the Compton effect and know the equation
• apply the rules governing pair production and annihilation