Содержание
- 2. Quick Quiz 2 Using Figure as a starting point, make a sketch of the combined diffraction
- 3. Quick Quiz 3 Cat’s eyes have pupils that can be modeled as vertical slits. At night,
- 4. Quick Quiz 4 If laser light is reflected from a phonograph record or a compact disc,
- 5. Course of lectures «Contemporary Physics: Part2» Lecture №5 Thermal radiation. Emissivity and absorptivity of the matter
- 6. Thermal radiation Kirchhoff's law Т (1) (2) Ratio of the emissivity of the body to its
- 7. Good model of this body is the small gap in closed cavity. Light, falling through the
- 8. In 1879 Stephen on the base of the analysis of the experimental data found that the
- 9. Displacement law Location of the maximum of spectral density of radiation of the black body on
- 10. (1) (2) (3) (4) (5) the Rayleigh–Jeans law Power on unit spectral interval
- 11. Wien's law Planck concluded, that the radiation and absorption processes by heated bodies of the electromagnetic
- 12. Planck equation at small x (high frequencies or big wavelength) almost coincides with semiempirical Wien’s law.
- 13. Real bodies have different radiation and absorption. There is the coefficient of “grayness” of spectral ελ
- 14. Dielectic radiation coefficients for (ω/c) ηλ*L>>1 Rλ is the reflection coefficient of the surface dielectric-vacuum (depends
- 15. Integral radiation coefficient of several dielectrics as the function of temperature : 1- rubber, 2- porcelain,
- 16. Spectral radiation coefficient ελ of some metals: 1-graphite, 2-copper, 3-iron, 4-aluminum, 5-silver. Metal radiation coefficients Metals,
- 17. Integral radiation coefficient of some metals. 1-nickel, 2-tungsten, 3-platinum.
- 18. Dependence of radiation coefficient from the angle of observation Integral radiation coefficient ε as a function
- 19. Selective coating are special coatings for heat control. Coating of cupper collector of solar radiance by
- 20. objective ocular Приёмник galvanometer The hot object Radiation pyrometers Пирометры основаны на фокусировке излучения раскаленной поверхности
- 21. Яркостные пирометры. Действие пирометра основано на сравнении яркости свечения тела, температура которого измеряется, и нити лампы
- 22. Цветовые пирометры. Серое тело имеет тот же спектральный состав, что и абсолютно черное тело. Поэтому температуру
- 23. Учебный фильм «Лучистый теплообмен» Нобелевская премия по физике в 2006 году присуждена за «абсолютно черное тело».
- 28. Quick Quiz 1 If a classroom door is open slightly, you can hear sounds coming from
- 29. Quick Quiz 2 Using Figure as a starting point, make a sketch of the combined diffraction
- 30. Quick Quiz 3 Cat’s eyes have pupils that can be modeled as vertical slits. At night,
- 32. Скачать презентацию