Calculating Discrete Energies The difference between two energy levels is equal to a specific photon energy The energy (hf) of the photon is given by: ΔE = hf = E2?- E1 Where, E1?= Energy of the hi...
Line Spectra Line spectra is a phenomenon which occurs when excited atoms emit light of certain wavelengths which correspond to different colours The emitted light can be observed as a series of co...
成都作為成渝地區(qū)雙城經(jīng)濟(jì)圈核心城市，在這個(gè)因疫情反復(fù)和國(guó)際形勢(shì)下，仍有不少家長(zhǎng)會(huì)為孩子選擇走國(guó)際體系。那么成都又有哪幾所開(kāi)設(shè)IB課程的國(guó)際學(xué)校有哪些值得大家了解呢？ 1.成都美視國(guó)際學(xué)校 成都美視國(guó)際學(xué)...
Atomic Energy Levels Electrons in an atom can have only certain specific energies These energies are called?electron energy levels They can be represented as a series of stacked horizontal lines in...
The de Broglie Wavelength De Broglie proposed that electrons travel through space as a wave This would explain why they can exhibit behaviour such as diffraction He therefore suggested that electro...
Wave-Particle Duality Light waves can behave like particles, i.e. photons,?and?waves This phenomenon is called the wave-particle nature of light or wave-particle duality Light interacts with matter...
Photoelectric Emission The work function Φ, or threshold energy, of a material is defined as: The minimum energy required to release a photoelectron from the surface of a material Consider the elec...
Threshold Frequency & Wavelength The concept of a threshold frequency is required in order to explain why a low frequency source, such as a filament lamp, was unable to liberate any electrons i...
The Photoelectric Effect: Basics The?photoelectric effect?is the phenomena in which electrons are emitted from the surface of a metal?upon the absorption of electromagnetic radiation Electrons remo...
