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Dual Nature of Radiation and Matter

Dual nature of radiation, Photoelectric effect, Hertz and Lenard's observations; Einstein's photoelectric equation-particle nature of light. Matter waves-wave nature of particles, de-Broglie relation, Davisson-Germer experiment (experimental details should be omitted; only conclusion should be explained).

12th physics. NCERT notes

Photoelectric Effect

Photoelectric effect is the phenomenon of emission of electrons by metals when illuminated by light of suitable frequency. Certain metals respond to ultraviolet light...
12th physics. NCERT notes

Experimental Study of Photoelectric Effect

We can use the experimental arrangement to study the variation of photocurrent with Intensity of radiation, Frequency of incident radiation, The potential difference between...
12th physics. NCERT notes

Photoelectric Effect and Wave Theory of light

The phenomena of interference, diffraction and polarization were explained in a natural and satisfactory way by the wave picture of light. According to this...
12th physics. NCERT notes

The Photon: Particle Nature of Light

Photoelectric effect thus gave evidence to the strange fact that light in interaction with matter behaved as if it was made of quanta or...
12th physics. NCERT notes

Wave Nature of Matter

The wave nature of light shows up in the phenomena of interference, diffraction and polarization. On the other hand, in photoelectric effect and Compton...
12th physics. NCERT notes

Davisson’s and Germer’s Experiment

The experiment by Davisson’s and Germer’s provides experimental proof of the concept of wave nature of material particles. The experimental arrangement used by Davisson and...