• Free electrons in metals (Work function, electron volt, electron emission, photoelectric effect)
• Hertz’s observation
• Hallwachs and Lenard’s observation
• Threshold frequency
• Cut-off or stopping potential
• Experimental study of photoelectric effect
• Einstein’s photoelectric effect
• Determination of Planck’s constant and work function
• Relation between stopping potential and threshold frequency
• Graph between frequency and photoelectric current
• Particles nature of light: The photon
• Important Questions
• Matter wave (de broglie wavelength)
• Important Questions
• Relation between de broglie wavelength and Temperature
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