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本周新課題匯總 1復雜系統可靠性模型研究 2金屬橡膠隔振器作為發動機懸置的可行性研究 3內燃機排氣管疲勞壽命的改進 4網球拍減振器 5室內低頻噪聲的改善 6綠色金融對生態環境的影響研究 7中國數字經濟發展水平測...
本周新課題匯總 1復雜系統可靠性模型研究 2金屬橡膠隔振器作為發動機懸置的可行性研究 3內燃機排氣管疲勞壽命的改進 4網球拍減振器 5室內低頻噪聲的改善 6綠色金融對生態環境的影響研究 7中國數字經濟發展水平測...
Required Practical: Young's Slit Experiment & Diffraction Gratings Equipment List Resolution?of measuring equipment: Metre ruler = 1 mm Vernier Callipers = 0.01 mm Young’s Double-...
Developing Theories of EM Radiation Isaac Newton (1672) Newton proposed that visible light is a stream of microscopic particles called?corpuscles However, these corpuscles could not explain ...
Double Slit Interference Two Source Interference For two-source interference fringes to be observed, the sources of the wave must be: Coherent?(constant phase difference) Monochromatic?(sing...
Interference & Diffraction of a Laser Interference and diffraction of lasers can be demonstrated with slits or diffraction gratings For light rays, such as a laser light through two slit...
Required Practical: Investigating Stationary Waves Aims of the Experiment The overall aim of the experiment is to measure how the frequency of the first harmonic is affected by changing one ...
Harmonics Stationary waves can have different wave patterns, known as?harmonics These depend on the?frequency?of the vibration and the?situation?in which they are created These harmon...
牛津本科很多專業都要求申請者參加admissions test,也就是入學考試。 牛津本科一共有13項入學評估,除了10個統一筆試,還有美術的實踐考核、音樂的表演評估,以及LNAT法律入學筆試。 而劍橋入學考試分為pre-inte...
近日,牛劍默不作聲地突然“聯手”搞了大事情!! 不僅把2022年所有筆試報名截止時間都提前到了9月30日,劍橋更是把多個原計劃11月2日舉行的筆試,提前到了10月18-19日! 劍橋官宣部分入學筆試提前 突如其來的提前...
Formation of Stationary Waves The Principle of Superposition The principle of superposition states: When two or more waves with the same frequency arrive at a point, the resultant displaceme...
Polarisation Polarisation is when: Particle oscillations occur in only one of the directions perpendicular to the direction of wave propagation Polarisation can only occur in transverse wave...
Defining Transverse & Longitudinal Waves In mechanical waves, particles?oscillate?about fixed points There are two types of wave:?transverse?and?longitudinal The type of wave can be dete...
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