Refractive Index Refraction occurs when light passes a boundary between two different transparent media At the boundary, the rays of light undergo a?change in direction The direction is take...
Diffraction Diffraction is the?spreading out?of waves when they pass an obstruction This obstruction is typically a narrow slit known as an aperture The extent of diffraction depends ...
Path Difference & Coherence Interference occurs when waves?overlap?and their resultant displacement is the?sum of the displacement of each wave This result is based on the principle of s...
Stationary Waves Standing waves?are produced by the?superposition?of two waves of the same?frequency?and?amplitude?travelling in?opposite directions This is usually achieved by a travelling ...
進入暑假，很多學生步入新高一、高二，留學備戰已經提上日程。對于很多同學來說，除了準備標化考試、學術活動之余，更重要的是要做專業興趣的探索。在明確專業方向之后，才能有計劃的設計并參與對應的科研活動。 ...
Properties of Oscillations A progressive wave is defined as: A wave that transfers energy from one point to another without transferring the medium itself Properties of a Progressive Wave Di...
Fibre Optics Fibre optics utilise the phenomenon of total internal reflection to send high speed light signals over large distances These have many important uses, including: Communications,...
UCAS（英國大學招生服務中心）發布公告，從2022年的入學年開始，2022年UCAS補錄發生變化，不再使用調劑（Adjustment），改為補錄（Clearing），2022年申請季的Clearing已經在7月5日正式開放了。 UCAS取消“調劑”環...
2022AP考試成績將在7月5日全球同步發送，每位考生可以通過自己的AP學生賬號在線查詢成績。但拿到考試成績不是終點，還需要留意后續的成績相關流程。 接下來這篇文章會針對同學關心的問題：查分/送分/復議/取消/隱...
Snell's Law Snell’s law relates the angle of incidence to the angle of refraction, it is given by: n1?sin?θ1?=?n2?sin?θ2 Where: n1?= the refractive index of material 1 n2?= the refractive in...
The Diffraction Grating A diffraction grating is a plate on which there is a?very large?number of parallel, identical, close-spaced slits When monochromatic light is incident on a grating, a...
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