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- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/25%3A_Vision_and_Optical_Instruments/25.2%3A_Other_Optical_InstrumentsA magnifying glass is a convex lens that lets the observer see a larger image of the object being observed.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2040%3A_General_Physics_III/05%3A_Vision_and_Optical_Instruments/5.2%3A_Other_Optical_InstrumentsA magnifying glass is a convex lens that lets the observer see a larger image of the object being observed.
- https://phys.libretexts.org/Courses/Prince_Georges_Community_College/PHY_2040%3A_General_Physics_III/08%3A_Introduction_to_Quantum_Physics/8.1%3A_History_and_Quantum_Mechanical_QuantitiesElectrons are emitted from matter that is absorbing energy from electromagnetic radiation, resulting in the photoelectric effect.
- https://phys.libretexts.org/Bookshelves/University_Physics/Physics_(Boundless)/29%3A_Atomic_Physics/29.2%3A_The_Early_AtomModern scientific usage denotes the atom as composed of constituent particles: the electron, the proton and the neutron.
- https://phys.libretexts.org/Bookshelves/Optics/BSc_Optics_(Konijnenberg_Adam_and_Urbach)/02%3A_Geometrical_Optics/2.02%3A_IntroductionIn this chapter we go back in history and treat geometrical optics. That may seem strange now that we have a much more accurate and better theory at our disposal. However, the predictions of geometric...In this chapter we go back in history and treat geometrical optics. That may seem strange now that we have a much more accurate and better theory at our disposal. However, the predictions of geometrical optics are under quite common circumstances very useful and also very accurate. In fact, for many optical systems and practical instruments there is no good alternative for geometrical optics because more accurate theories are much too complicated to use.
- https://phys.libretexts.org/Courses/Bowdoin_College/Phys1140%3A_Introductory_Physics_II%3A_Part_2/04%3A_DiffractionIn the preceding chapter, we implicitly regarded slits as objects with positions but no size. The widths of the slits were considered negligible. When the slits have finite widths, each point along th...In the preceding chapter, we implicitly regarded slits as objects with positions but no size. The widths of the slits were considered negligible. When the slits have finite widths, each point along the opening can be considered a point source of light—a foundation of Huygens’s principle. Because real-world optical instruments must have finite apertures (otherwise, no light can enter), diffraction plays a major role in the way we interpret the output of these optical instruments.
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/zz%3A_Back_Matter/10%3A_13.1%3A_Appendix_J-_Physics_Formulas_(Wevers)/1.06%3A_OpticsOptical components and the behaviour and properties of optical waves
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/11%3A_Physical_Optics/11.07%3A_Single-Slit_DiffractionDiffraction can send a wave around the edges of an opening or other obstacle. A single slit produces an interference pattern characterized by a broad central maximum with narrower and dimmer maxima to...Diffraction can send a wave around the edges of an opening or other obstacle. A single slit produces an interference pattern characterized by a broad central maximum with narrower and dimmer maxima to the sides.
- https://phys.libretexts.org/Courses/Bowdoin_College/Phys1140%3A_Introductory_Physics_II%3A_Part_2/04%3A_Diffraction/4.02%3A_Single-Slit_DiffractionDiffraction can send a wave around the edges of an opening or other obstacle. A single slit produces an interference pattern characterized by a broad central maximum with narrower and dimmer maxima to...Diffraction can send a wave around the edges of an opening or other obstacle. A single slit produces an interference pattern characterized by a broad central maximum with narrower and dimmer maxima to the sides.
- https://phys.libretexts.org/Learning_Objects/A_Physics_Formulary/Physics/06%3A_OpticsOptical components and the behaviour and properties of optical waves
- https://phys.libretexts.org/Courses/Georgia_State_University/GSU-TM-Introductory_Physics_II_(1112)/11%3A_Physical_Optics/11.11%3A_Huygens's_Principle_-_DiffractionAn accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the ...An accurate technique for determining how and where waves propagate is given by Huygens’s principle: Every point on a wavefront is a source of wavelets that spread out in the forward direction at the same speed as the wave itself. The new wavefront is a line tangent to all of the wavelets. Diffraction is the bending of a wave around the edges of an opening or other obstacle.
