plank's constant

简明释义

普朗克常数

英英释义

例句

1.When calculating the wavelength of a particle, you must take into account plank's constant (普朗克常数).

在计算粒子的波长时，必须考虑普朗克常数。

2.Scientists often refer to plank's constant (普朗克常数) when discussing the quantization of energy levels in atoms.

科学家在讨论原子能量级的量子化时经常提到普朗克常数。

3.The formula E=hf uses plank's constant (普朗克常数) to relate energy and frequency of photons.

公式E=hf使用普朗克常数将光子的能量与频率联系起来。

4.In quantum mechanics, the value of plank's constant (普朗克常数) is crucial for understanding the behavior of particles at the atomic level.

在量子力学中，普朗克常数的值对理解原子级别粒子的行为至关重要。

5.The uncertainty principle is closely related to plank's constant (普朗克常数), highlighting limits on measurement accuracy.

不确定性原理与普朗克常数密切相关，强调了测量精度的限制。

作文

In the realm of physics, few constants are as pivotal as Planck's constant. This fundamental quantity plays a crucial role in the field of quantum mechanics, bridging the gap between the macroscopic and microscopic worlds. The significance of Planck's constant lies in its ability to define the scale at which quantum effects become noticeable. It is denoted by the symbol 'h' and has a value of approximately 6.626 x 10^-34 Joule seconds. This minuscule number may seem trivial at first glance, but its implications are profound and far-reaching.To appreciate the importance of Planck's constant, one must first understand the context in which it was introduced. In the early 20th century, physicists were grappling with phenomena that classical physics could not explain, such as blackbody radiation and the photoelectric effect. Max Planck, a German physicist, proposed that energy is quantized and can only be emitted or absorbed in discrete units called quanta. This revolutionary idea laid the groundwork for the development of quantum theory.The introduction of Planck's constant allowed scientists to quantify the relationship between energy and frequency of electromagnetic radiation. According to Planck's law, the energy of a photon is directly proportional to its frequency, with Planck's constant serving as the proportionality factor. This relationship is expressed mathematically as E = hν, where E is the energy, h is Planck's constant, and ν (nu) is the frequency. This equation not only elucidates the behavior of light but also has profound implications for understanding atomic and subatomic processes.Furthermore, Planck's constant is integral to the Heisenberg uncertainty principle, which states that certain pairs of physical properties, like position and momentum, cannot both be precisely measured simultaneously. The uncertainty principle highlights the inherent limitations of measurement at the quantum level, emphasizing the counterintuitive nature of quantum mechanics. Here, Planck's constant serves as a fundamental limit to the precision with which we can know these properties, reinforcing the idea that at the microscopic scale, the universe behaves in ways that defy classical intuition.In addition to its theoretical significance, Planck's constant has practical applications in various technologies. For instance, it underpins the functioning of lasers, semiconductors, and even the development of quantum computers. These technologies rely on the principles of quantum mechanics, which are fundamentally linked to Planck's constant. As we continue to explore the frontiers of science, the relevance of this constant becomes increasingly apparent, influencing fields ranging from materials science to information technology.In conclusion, Planck's constant is more than just a number; it is a gateway to understanding the quantum world. Its introduction marked a paradigm shift in physics, leading to the development of theories that have reshaped our comprehension of the universe. As we delve deeper into the mysteries of quantum mechanics, Planck's constant remains a cornerstone of scientific inquiry, guiding researchers as they seek to unravel the complexities of reality. The legacy of Max Planck's insight continues to inspire generations of physicists, reminding us of the beauty and intricacy of the natural world at its most fundamental level.

在物理学领域，少有常数像普朗克常数一样重要。这个基本量在量子力学中扮演着至关重要的角色，架起了宏观和微观世界之间的桥梁。普朗克常数的重要性在于它能够定义量子效应变得显著的尺度。它用符号'h'表示，值大约为6.626 x 10^-34焦耳秒。这个微不足道的数字乍一看似乎微不足道，但其影响深远且广泛。要理解普朗克常数的重要性，首先必须了解它被引入的背景。在20世纪初，物理学家们正在努力解决经典物理无法解释的现象，如黑体辐射和光电效应。德国物理学家马克斯·普朗克提出，能量是量子化的，只能以离散单位（称为量子）发射或吸收。这一革命性的想法为量子理论的发展奠定了基础。普朗克常数的引入使科学家能够量化能量与电磁辐射频率之间的关系。根据普朗克定律，光子的能量与其频率成正比，普朗克常数作为比例因子。这个关系在数学上表示为E = hν，其中E是能量，h是普朗克常数，ν（nu）是频率。这个方程不仅阐明了光的行为，还对理解原子和亚原子过程具有深远的影响。此外，普朗克常数是海森堡不确定性原理的核心，该原理指出某些物理属性对，例如位置和动量，不能同时被精确测量。不确定性原理强调了量子层面测量的固有限制，突出了量子力学的反直觉特性。在这里，普朗克常数作为我们能够准确知道这些属性的基本限制，强化了在微观尺度上，宇宙以违背经典直觉的方式运作的理念。除了理论意义外，普朗克常数在各种技术中也有实际应用。例如，它是激光器、半导体，甚至量子计算机发展的基础。这些技术依赖于量子力学的原理，而这些原理与普朗克常数有着根本的联系。随着我们继续探索科学的前沿，这个常数的相关性变得愈加明显，影响着从材料科学到信息技术等多个领域。总之，普朗克常数不仅仅是一个数字；它是理解量子世界的门户。它的引入标志着物理学的范式转变，导致了重塑我们对宇宙理解的理论的发展。当我们深入探讨量子力学的奥秘时，普朗克常数仍然是科学探究的基石，引导研究人员寻求解开现实复杂性的答案。马克斯·普朗克洞察力的遗产继续激励着一代又一代的物理学家，提醒我们在其最基本的层面上，自然世界的美丽和复杂性。