Class 12 Physics | Dual Nature of Radiation
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,Class 12 Physics | Dual Nature of Radiation
Dual Nature of Radiation
Notes
www.learnohub.com
, Class 12 Physics | Dual Nature of Radiation
Introduction
Do radiations have properties resembling a wave, a particle, or both?
Interference, diffraction etc. prove wave nature of radiations. However,
photoelectric effect verifies the particle nature of radiations. Same question go
for the matters, could matters also possess wave-particle dualism? These are
the main arguments we are going to discuss in this chapter notes.
Could radiation possess the wave-particle dualism?
Could the same be said about the matter?
Roadmap to the Discovery of Electron:fs
• William Crookes, in 1870, discovered that on applying a strong electric field
between cathode and anode (kept under discharge tube at low pressures),
some rays were emitted by the cathode. These rays were noticed as a
bright fluorescent on the glass adjacent to the cathode
• These rays were called as cathode rays by William Crookes
• In 1879, he proposed that these cathode rays are a bunch of fast moving
negatively charged particles
www.learnohub.com
www.learnohub.com
,Class 12 Physics | Dual Nature of Radiation
Dual Nature of Radiation
Notes
www.learnohub.com
, Class 12 Physics | Dual Nature of Radiation
Introduction
Do radiations have properties resembling a wave, a particle, or both?
Interference, diffraction etc. prove wave nature of radiations. However,
photoelectric effect verifies the particle nature of radiations. Same question go
for the matters, could matters also possess wave-particle dualism? These are
the main arguments we are going to discuss in this chapter notes.
Could radiation possess the wave-particle dualism?
Could the same be said about the matter?
Roadmap to the Discovery of Electron:fs
• William Crookes, in 1870, discovered that on applying a strong electric field
between cathode and anode (kept under discharge tube at low pressures),
some rays were emitted by the cathode. These rays were noticed as a
bright fluorescent on the glass adjacent to the cathode
• These rays were called as cathode rays by William Crookes
• In 1879, he proposed that these cathode rays are a bunch of fast moving
negatively charged particles
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