首页
登录
职称英语
Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is
Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is
游客
2024-01-02
7
管理
问题
Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is best remembered as the originator of the quantum theory. His work helped usher in a new era in theoretical physics and revolutionized the scientific community’s understanding of atomic and subatomic processes.
Planck introduced an idea that led to the quantum theory, which became the foundation of twentieth century physics. In December 1900, Planck worked out an equation that described the distribution of radiation accurately over the range of low to high frequencies. He had developed a theory which depended on a model of matter that seemed very strange at the time. The model required the emission of electromagnetic radiation in small chunks or particles. These particles were later called quantums. The energy associated with each quantum is measured by multiplying the frequency of the radiation, v, by a universal constant, h. Thus, energy, or E, equals by. The constant, h, is known as Planck’s constant. It is now recognized as one of the fundamental constants of the world.
Planck announced his findings in 1900, but it was years before the full consequences of his revolutionary quantum theory were recognized. Throughout his life, Planck made significant contributions to optics, thermodynamics and statistical mechanics, physical chemistry, among other fields. [br] The particles of electromagnetic radiation given off by matter are known as ______.
选项
A、quantums
B、atoms
C、electrons
D、valences
答案
A
解析
见文章第二段第四、五句:The model required the emission of electromagnetic radiation in small chunks or particles.These particles were later called quantums.由此可看出发出电磁辐射的微粒应为quantums(量子),选项A正确。
转载请注明原文地址:https://www.tihaiku.com/zcyy/3326223.html
相关试题推荐
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
NarratorListentopartofadiscussioninaphysicsclass.Theprofesso
PhilosophyofLogicalAnalysisModernphysicsandphysio
随机试题
[originaltext]M:Ireallydon’tknowwhattodothissummer.Ican’taffordto
Forthispart,youareallowed30minutestowriteashortessay.Youshould
患者男性,48岁。急性心肌梗死溶栓后2小时记录的12导联心电图见图3-8。
溃疡性结肠炎活动期的表现为A.黏液脓血便 B.外周关节炎 C.腹痛 D.呕
以下关于货币政策传导机制的一般过程,说法正确的是( )。A.货币政策工具—中介
糖异生的主要生理意义是A.补充血糖 B.分解脂肪 C.生成NADPH D.
依据国家税收政策及其他相关法律、法规和相关规定,为满足委托人特定目标提供的税收策
下列各项中,免征或不征契税的有( )。A.国家出让国有土地使用权 B.受赠人
我国目前工程建设标准分为四级、两类。两类即()。A.国家、地方 B.强制
已知某工程的网络计划中相关资料如下表所示。 问题:1.根据上表绘制
最新回复
(
0
)