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(jìn)入暑假，很多學(xué)生步入新高一、高二，留學(xué)備戰(zhàn)已經(jīng)提上日程。對于很多同學(xué)來說，除了準(zhǔn)備標(biāo)化考試、學(xué)術(shù)活動之余，更重要的是要做專業(yè)興趣的探索。在明確專業(yè)方向之后，才能有計劃的設(shè)計并參與對應(yīng)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(xué)招生服務(wù)中心）發(fā)布公告，從2022年的入學(xué)年開始，2022年UCAS補(bǔ)錄發(fā)生變化，不再使用調(diào)劑（Adjustment），改為補(bǔ)錄（Clearing），2022年申請季的Clearing已經(jīng)在7月5日正式開放了。 UCAS取消“調(diào)劑”環(huán)...
2022AP考試成績將在7月5日全球同步發(fā)送，每位考生可以通過自己的AP學(xué)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(xù)的成績相關(guān)流程。 接下來這篇文章會針對同學(xué)關(guān)心的問題：查分/送分/復(fù)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...
