📋 Formulario

Complete Theory

Worked Examples

Example 1Photoelectric effect
Example 2Hydrogen spectral lines

Exercises with Solutions

Exercise 1Wien's lawMedium
📋 Problem to solve
Solar surface T=5778KT=5778\,K. Peak emission wavelength.
Exercise 2de BroglieHard
📋 Problem to solve
Electron accelerated through V=100VV=100\,V. Find speed, pp, and de Broglie wavelength.
📌 Given data
V=100\,Vm_e=9.11\times10^{-31}\,kge=1.6\times10^{-19}\,C
Exercise 3Energy levelsMedium
📋 Problem to solve
Wavelength of Lyman-α\alpha (n=21n=2\to1).