PHYSICS RESOURCE BOOK G13 UNIT 11

1.0 Quantum nature of radiation

1.1 Thermal radiation

1.2 Basic properties of thermal radiation

1.3 Thermal equilibrium

1.4 Black body radiation

1.5 Wien’s displacement law

1.6 Stefan’s displacement law

1.7 Emissivity of surface

1.8 Absorptivity of a surface

1.9 Explanation of intensity distribution for the black body radiation

2.0 Photoelectric effect

2.1 The phenomenon of photoelectric effect

2.2 Demonstration of photoelectric effect using a photocell

3.0 The wave nature of matter

3.1 Introduction

3.2 De Broglie relationship for matter waves

3.3 Diffraction of electrons

3.4 X-ray diffraction

3.5 Electron microscope

4.0 X-Rays

4.1 Cathode rays

4.2 X-rays

5.0 Radioactivity

5.1 Introduction

5.2 a, ẞ and y radiation

5.3 Radioactive decay

5.4 Radioactive isotopes

5.5 a emission (a-decay)

5.6 B-emission (ẞ – decay)

5.7 Y- emission

5.8 Radioactive nuclides

5.9 Radioactive disintegration law

5.10 Activity of a radioactive element

5.11 Radioactive dating or carbon dating

5.13 Radiation hazards

5.14 Radiation detectors