1mm to 700nm Thermopiles, Green House effect, looking Infrared 1011 to1014 Hz Vibration of atom or Bolometer through haze, fog and mist, molecules Infrared Ariel mapping. Photographic Film to 400nm Eye, Photocell, Photography, Illuminations, Light 8x1014 Hz Electron in an atom Photographic Emit & reflect by the objects. during transition Film Preservation of food 400nm to 1nm Shell electron in Photocell & Detection of invisible Ultra- 5x1014 to atom moving from photographic writing, finger print in violet 8x1014 one energy level to a film forensic laboratory. lower energy level Determination of Structure of molecules & atoms. 1nm to 10-3nm X-ray tube or inner Photographic Study of crystal structure & 1016 to 1021 shell Electrons film, Geiger atom, fracture of bones. X-rays Hz tube, ionization chamber. <10-3nm Radioactive decay of Nuclear reaction & structure 1018 to 1022 the nucleus Photographic of atoms & Nuclei. Gamma Hz film, Geiger To destroy cancer cells. ray tube, ionization chamber IMPORTANT DIAGRAMS ELECTROSTATICS ELECTRIC FIELD LINES Two equal and opposite charges Two equal positive charges EQUIPOTENTIAL SURFACES
Infrared 1mm to 700nm 1011 to1014 Hz Vibration of atom or molecules Thermopiles, Bolometer Infrared Photographic Film Green House effect, looking through haze, fog and mist, Ariel mapping. Light to 400nm 8x1014 Hz Electron in an atom during transition Eye, Photocell, Photographic Film Photography, Illuminations, Emit & reflect by the objects. Ultra- violet 400nm to 1nm 5x1014 to 8x1014 Shell electron in atom moving from one energy level to a lower energy level Photocell & photographic film Preservation of food Detection of invisible writing, finger print in forensic laboratory. Determination of Structure of molecules & atoms. X-rays 1nm to 10-3nm 1016 to 1021 Hz X-ray tube or inner shell Electrons Photographic film, Geiger tube, ionization chamber. Study of crystal structure & atom, fracture of bones. Gamma ray <10-3nm 1018 to 1022 Hz Radioactive decay of the nucleus Photographic film, Geiger tube, ionization chamber Nuclear reaction & structure of atoms & Nuclei. To destroy cancer cells. IMPORTANT DIAGRAMS ELECTROSTATICS ELECTRIC FIELD LINES Two equal and opposite charges Two equal positive charges EQUIPOTENTIAL SURFACES
question-bank-class-xii-physics.docx