absolute refraction

简明释义

1. 绝对折射; 2. 绝对折射完全内反射; 3. 完全内反射;

英英释义

例句

1.In optics, absolute refraction can be defined as the bending of light rays when they pass from one medium to another.

在光学中，绝对折射可以定义为光线从一种介质进入另一种介质时的弯曲。

2.The study of absolute refraction helps in designing better optical instruments.

对绝对折射的研究有助于设计更好的光学仪器。

3.When light enters water, it undergoes absolute refraction, which makes objects appear distorted.

当光进入水中时，它会经历绝对折射，使物体看起来扭曲。

4.The concept of absolute refraction is crucial in understanding how light travels through different media.

绝对折射的概念对于理解光在不同介质中的传播非常重要。

5.Calculating the index of refraction involves understanding absolute refraction and its relationship with wavelength.

计算折射率涉及理解绝对折射及其与波长的关系。

作文

Refraction is a fundamental concept in physics that describes how light bends when it passes from one medium to another. The phenomenon of refraction can be observed in many everyday situations, such as when a straw appears bent in a glass of water or when a rainbow forms after a rain shower. One specific type of refraction that is particularly important in the study of optics is known as absolute refraction. This term refers to the bending of light as it travels through a medium with a different refractive index compared to a vacuum. Understanding absolute refraction is crucial for various applications, including the design of lenses, optical instruments, and even in understanding natural phenomena like the formation of mirages.The refractive index is a dimensionless number that indicates how much light slows down in a medium compared to its speed in a vacuum. For example, the refractive index of air is approximately 1.0003, while that of water is about 1.33. When light enters a medium with a higher refractive index, it slows down and bends towards the normal line, which is an imaginary line perpendicular to the surface at the point of incidence. Conversely, when light exits a denser medium into a less dense one, it speeds up and bends away from the normal. This bending of light is what we refer to as absolute refraction.In practical terms, absolute refraction plays a vital role in the functioning of optical devices such as glasses, microscopes, and telescopes. For instance, corrective lenses for vision problems are designed based on the principles of absolute refraction. By altering the path of light entering the eye, these lenses help focus images correctly on the retina, allowing individuals to see clearly. Similarly, microscopes utilize absolute refraction to magnify small objects, enabling scientists to observe details that are otherwise invisible to the naked eye.Moreover, the concept of absolute refraction extends beyond artificial devices; it also helps explain natural occurrences. A classic example is the phenomenon of a mirage, which occurs in hot climates where the ground is heated significantly by the sun. The hot air near the surface has a lower refractive index than the cooler air above it. As light travels from the sky to the ground, it bends upward due to absolute refraction, creating the illusion of water on the road. This fascinating interplay between light and temperature illustrates the principles of absolute refraction in action.In conclusion, absolute refraction is a critical concept in both physics and everyday life. It not only aids in the development of optical technology but also enhances our understanding of natural phenomena. By studying how light behaves as it moves through different media, we can unlock new innovations and deepen our appreciation for the world around us. Whether through the lens of a microscope or the shimmering effect of a mirage, absolute refraction remains an essential aspect of our exploration of light and vision.

折射是物理学中的一个基本概念，描述了光在从一种介质进入另一种介质时如何弯曲。折射现象可以在许多日常情况下观察到，例如当吸管在水杯中看起来弯曲时，或者当雨后形成彩虹时。一个特别重要的折射类型被称为绝对折射。这个术语指的是光在穿过与真空具有不同折射率的介质时的弯曲。理解绝对折射对于各种应用至关重要，包括透镜、光学仪器的设计，甚至理解自然现象如海市蜃楼的形成。折射率是一个无量纲数，表示光在某一介质中相对于其在真空中的速度减慢了多少。例如，空气的折射率约为1.0003，而水的折射率约为1.33。当光进入一个折射率较高的介质时，它会减速并向法线弯曲，法线是指在入射点与表面垂直的虚线。相反，当光从一个密度较大的介质退出到一个密度较小的介质时，它会加速并远离法线弯曲。这种光的弯曲就是我们所称的绝对折射。在实际应用中，绝对折射在光学设备的功能中发挥着至关重要的作用，例如眼镜、显微镜和望远镜。例如，用于视力问题的矫正镜片是基于绝对折射的原理设计的。通过改变进入眼睛的光线路径，这些镜片帮助图像正确聚焦在视网膜上，使个体能够清晰地看见。同样，显微镜利用绝对折射放大小物体，使科学家能够观察到肉眼无法看到的细节。此外，绝对折射的概念不仅限于人工设备；它还帮助解释自然现象。一个经典的例子是海市蜃楼现象，它发生在炎热的气候中，地面因阳光的强烈照射而显著升温。靠近地面的热空气的折射率低于其上方的冷空气。当光从天空穿过地面时，由于绝对折射，它向上弯曲，从而产生路面上有水的错觉。这种光与温度之间的迷人互动生动地展示了绝对折射的原理。总之，绝对折射是物理学和日常生活中的一个关键概念。它不仅有助于光学技术的发展，还增强了我们对自然现象的理解。通过研究光在不同介质中移动时的行为，我们可以解锁新的创新，并加深对周围世界的欣赏。无论是通过显微镜的镜头还是海市蜃楼的闪烁效果，绝对折射始终是我们探索光与视觉的重要方面。