Lasers: Light Amplification and Applications

Light amplification by stimulated emission of radiation

Stimulated emission

To have more atoms in higher energy levels than lower levels

<p>Monochromatic, coherent, and intense</p> Signup and view all the answers

<p>It allows for constructive superposition, resulting in high amplitude and directionality</p> Signup and view all the answers

<p>The work function is the minimum energy needed for an electron to escape from a material.</p> Signup and view all the answers

<p>Planck's constant determines the energy of a photon in the photoelectric effect.</p> Signup and view all the answers

<p>Quanta refers to the discrete set amounts of energy emitted in the form of photons.</p> Signup and view all the answers

<p>The frequency of light must be greater than or equal to the threshold frequency for electrons to escape with kinetic energy.</p> Signup and view all the answers

<p>The ground state of hydrogen is the most stable state, with the electron closest to the nucleus.</p> Signup and view all the answers