Digi Notes Basic Science MODERN PHYSICS Material PDF Download

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Topics covered:

• MODERN PHYSICS
• BLACKBODY RADIATION
• BLACKBODY RADIATION SPECTRUM AND ITS FEATURES
• LAWS GOVERNING THE BLACKBODY RADIATION
• WIEN’S LAW
• RAYLEIGH-JEANS LAW
• ULTRAVIOLET CATASTROPHE
• PLANCK’S LAW
• REDUCTION OF PLANCK’S LAW TO WIEN’S LAW AND RAYLEIGH-JEANS LAW
• COMPTON EFFECT
• EXPLANATION OF COMPTON EFFECT
• PHYSICAL SIGNIFICANCE OF COMPTON EFFECT
• WAVE PARTICLE DUALISM
• De- BROGLIE’S HYPOTHESIS
• De- BROGLIE WAVELENGTH
• PHASE VELOCITY AND GROUP VELOCITY
• RELATION BETWEEN PHASE VELOCITY AND GROUP VELOCITY
• RELATION BETWEEN GROUP VELOCITY AND PARTICLE VELOCITY
• RELATION BETWEEN PHASE VELOCITY, GROUP VELOCITY AND VELOCITY OF LIGHT
• CHARACTERISTICS OF MATTER WAVES
• QUANTUM MECHANICS
• HEISENBERG’S UNCERTAINTY PRINCIPLE
• PHYSICAL SIGNIFICANCE OF HEISENBERG’S PRINCIPLE
• APPLICATION OF HEISENBERG’S UNCERTAINTY PRINCIPLE
• WAVE FUNCTION

QUESTION BANK

1. What are the basic postulates of quantum theory of radiation? Explain how Planck’s theory overcomes the drawbacks of weins law and Rayleigh jeans law
2. What is a blackbody? Draw the blackbody radiation spectrum. Mention its features
3. Show that group velocity is equal to particle velocity.i.e (Vgroup= V particle)
4. State Heisenberg’s Uncertainty Principle and P.T non existence of electron in nucleus using Uncertainty principle
5. Find the Eigen values and Eigen functions for an electron in one dimensional potential well of infinite height.
6. Set up the time independent Schrodinger wave equation.

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