angle of refraction

简明释义

折射角

英英释义

例句

1.When observing a straw in a glass of water, the bending effect is due to the angle of refraction 折射角.

当你观察水杯中的吸管时，弯曲效果是由于折射角 angle of refraction造成的。

2.The angle of refraction 折射角 increases as the wavelength of light decreases.

随着光波长的减少，折射角 angle of refraction 增加。

3.When light passes from air into water, the angle of refraction 折射角 can be calculated using Snell's law.

当光从空气进入水中时，折射角 angle of refraction 可以使用斯涅尔定律计算。

4.To find the angle of refraction 折射角, you need to know both the incident angle and the refractive indices of the two media.

要找到折射角 angle of refraction，你需要知道入射角和两个介质的折射率。

5.In optical devices, understanding the angle of refraction 折射角 is essential for designing lenses.

在光学设备中，理解折射角 angle of refraction 对于设计透镜至关重要。

作文

The concept of the angle of refraction is fundamental in understanding how light interacts with different mediums. When light travels from one medium to another, such as from air into water, it changes speed and direction. This change is what we refer to as refraction. The angle of refraction is defined as the angle between the refracted ray and the normal line, which is an imaginary line perpendicular to the surface at the point of incidence. To illustrate this concept, let’s consider a practical example. Imagine you are standing on the shore of a lake, looking at a fish swimming beneath the surface. As light rays travel from the fish to your eyes, they pass through the water and then enter the air. Because light travels slower in water than in air, the light rays bend at the interface where the two mediums meet. The angle at which these rays bend is known as the angle of refraction. The relationship between the angles of incidence and refraction can be described by Snell’s Law, which states that the ratio of the sine of the angle of incidence to the sine of the angle of refraction is constant and is equal to the ratio of the velocities of light in the two media. Mathematically, it can be expressed as: sin(θ1)/sin(θ2) = v1/v2, where θ1 is the angle of incidence, θ2 is the angle of refraction, v1 is the velocity of light in the first medium, and v2 is the velocity of light in the second medium. Understanding the angle of refraction is not only crucial in physics but also has practical applications in various fields such as optics, photography, and even in designing lenses for glasses and cameras. For instance, when creating corrective lenses, optometrists must consider how light will refract through the lens material to ensure that it properly focuses light onto the retina. Moreover, the angle of refraction plays a significant role in phenomena such as the formation of rainbows. When sunlight enters a raindrop, it refracts, reflects off the inside surface of the drop, and refracts again as it exits. The specific angles at which this occurs lead to the beautiful spectrum of colors that we see in a rainbow. In conclusion, the angle of refraction is a key concept in the study of light and its behavior when transitioning between different mediums. It is a principle that not only explains everyday observations, such as the bending of a straw in a glass of water, but also underpins advanced technologies in optics and imaging. By mastering the concept of the angle of refraction, one gains a deeper appreciation of the natural world and the science that governs it.

“折射角”这一概念在理解光与不同介质相互作用的过程中至关重要。当光从一种介质传播到另一种介质时，例如从空气进入水中，它会改变速度和方向。这种变化就是我们所称的折射。“折射角”被定义为折射光线与法线之间的角度，法线是指在入射点处垂直于表面的虚线。 为了说明这一概念，我们可以考虑一个实际的例子。想象一下你站在湖边，观察水下游动的鱼。当光线从鱼身上传播到你的眼睛时，它们穿过水面，然后进入空气。由于光在水中的传播速度比在空气中慢，因此光线在两个介质交界处发生弯曲。这些光线弯曲的角度就被称为“折射角”。 入射角与折射角之间的关系可以通过斯涅尔定律来描述，该定律指出入射角的正弦与折射角的正弦之比是一个常数，并等于两种介质中光速的比率。用数学公式表示为：sin(θ1)/sin(θ2) = v1/v2，其中θ1是入射角，θ2是“折射角”，v1是第一介质中的光速，v2是第二介质中的光速。 理解“折射角”不仅在物理学中至关重要，而且在光学、摄影以及眼镜和相机镜头设计等多个领域都有实际应用。例如，在制作矫正镜片时，验光师必须考虑光如何通过镜片材料折射，以确保它能正确聚焦光线到视网膜上。 此外，“折射角”在现象如彩虹的形成中也发挥着重要作用。当阳光进入雨滴时，它会折射、在雨滴内表面反射，并在退出时再次折射。这一过程发生的特定角度导致了我们在彩虹中看到的美丽色谱。 总之，“折射角”是研究光及其在不同介质之间转变时行为的关键概念。它不仅解释了日常观察现象，如在水杯中弯曲的吸管，还支撑了光学和成像领域的先进技术。通过掌握“折射角”这一概念，人们能够更深刻地欣赏自然界及其背后的科学。