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
2025-02-03
6
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/3940785.html
相关试题推荐
WalkalongtheRiverWarnow,innorthernGermany,andyoumaybeluckyenoug
At51,CathywantedtoputherOxfordphysicsdegreeandformerexperiencetobe
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
AwardedtheNobelPrizeforphysicsin1918,GermanphysicistMaxPlanckis
Somephysicistshaveproposedthatsunspotsandsolarwindhavenegligibleeffec
Someadvancedeconomies,notablyJapanandGermany,faredbetterthanothersdur
随机试题
Americans’circleofcloseconfidantshasshrunkdramaticallyinthepasttw
Scientistsclaimthatairpollutioncausesadeclineintheworld’saveragea
【教学过程】 环节一:导入新课 老师随意在课堂上做三组有趣的动作,引导学生在3分钟内捕捉老师的动作并且尝试运用线描的形式画下来。 学生尝试并展示作品
可以对个别的经济业务进行单项核算的是()。A.会计核算 B.业务核算 C.
欧美国家会员以自然人为主。()
A,逆时针旋转,一个每次3格,一个每次2格
2020年11月,经统计可知,北京轨道交通路网运营线路达23条,总里程699.3
关键绩效指标可分为( )。A.数量指标 B.质量指标 C.成本指标 D.
劳动教养,是指对不满16周岁而不予刑事处罚的少年犯罪人员,集中进行文化教育、法律
逃避海关监管将境外固体废物、液态废物和气态废物运输进境,情节严重的,构成()。A
最新回复
(
0
)