'Light photon' diaporamas de présentation

Astronomy 1020 Stellar Astronomy Spring_2014 Day-8

392 views • 27 slides

Scintillators

Scintillators. Scintillators. When radiation interacts with certain types of materials, it produces flashes of light (scintillation) Materials that respond this way are called scintillators. These flashes can be collected and counted to obtain a measure of the radiation intensity.

380 views • 24 slides

Quantum Physics

559 views • 23 slides

THE PHOTOELECTRIC EFFECT

THE PHOTOELECTRIC EFFECT. A simple demonstration to explain the photoelectric effect. Albert EinsteinTM HUJ, www.albert-einstein.net. When red light is incident on a clean metal surface:. Clean metal surface. e. e. e. e. e. e. no electrons are released,

369 views • 11 slides

Photoelectric Equation:

Incident light. Cathode. Anode. A. V. +. -. Stopping potential:. V o = 0.800 V. Example 4: The threshold frequency for a given surface is 1.09 x 10 15 Hz . What is the stopping potential for incident light whose photon energy is 8.48 x 10 -19 J ? . Photoelectric Equation:.

231 views • 9 slides

Flame Spectroscopy Lab

Flame Spectroscopy Lab. Bohr Model & Color Spectroscopy. An electron can transition between energy levels by absorbing energy to jump to a higher level (excited state), and then emitting light photons of a particular color when it relaxes to the normal level (ground state).

379 views • 7 slides