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
8
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] "An idea" as used in Line 5, refers to ______.
选项
A、a model of matter
B、emission of electromagnetic radiation
C、quantums
D、the equation that described the distribution of radiation accurately over the range of low to high frequencies
答案
D
解析
从文章第二段的第一和第二句(见上题)中可看出an idea指的即是“描述辐射从低频到高频精确分布的一个方程式”,所以选项D正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3326225.html
相关试题推荐
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
PhilosophyofLogicalAnalysisModernphysicsandphysiologythr
NarratorListentopartofadiscussioninaphysicsclass.Theprofesso
NarratorListentopartofadiscussioninaphysicsclass.Theprofesso
PhilosophyofLogicalAnalysisModernphysicsandphysio
PhilosophyofLogicalAnalysisModernphysicsandphysio
随机试题
Americanstodaydon’tplaceaveryhighvalueonintellect.Ourheroesarea
适用于碎石土地基的原位测试方法有:()A.平板荷载试验 B.静力触探 C.圆
有氧运动由少量的高阻力运动组成。( )
20世纪前,在西方占主导地位的医学理论分析框架把残疾看做是“功能丧失”,即把残疾
下列不属于柯克帕特里克四级评估模式中二级评估的是( )。A.问卷调查 B.书
有一无限长稍密中粗砂组成的边坡,坡角为25°中粗砂内摩擦角为30°有自坡顶的顺坡
下列不属于中小企业私募债优势的是()。A.发行期限可长可短 B.采用交易所备案
论述环境对人的作用。
(2016年真题)通过对天然雌激素进行结构改造获得的作用时间长的雌激素类药物是A
男性,37。自幼起咳嗽、咳痰、喘息,多为受凉后发作,静滴"青霉素"可缓解,10~
最新回复
(
0
)