题目内容
（请给出正确答案）
A.
s
B.
s
C.
s
D.
s
参考答案
简答题官方参考答案
（由简答题聘请的专业题库老师提供的解答）
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更多“Planck 时间约为”相关的问题
A.COBE，WMAP，Planck
B.COBE，Planck，WMAP
C.WMAP，COBE，Planck
D.Planck，COBE，WMAP
襟翼连续放下时间约为S，收起时间约为S。
A.8、12s
B.10、8s
C.12、8s
D.8、10s
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 hv. 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.
In which of the following fields did Max Planck NOT make a significant conla4bution？
A．Optics.
B．Thermodynamics.
C．Statistical mechanics.
D．Biology.
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m
m
m
m
