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  3. Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is best remembered as the originator of the quantum the

Awarded the Nobel Prize for physics in 1918, German physicist Max Planck is best remembered as the originator of the quantum the

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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 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.
The word "revolutionary" as used in Line 16 means ______.
选项 A、radical
B、extremist
C、momentous
D、militaristic
答案C
解析 词义题型。Planck announced his findings in 1900, but it was years before the full consequences of his revolutionary quantum theory were recognized．此句意为：普朗克在1900年公布了量子理论，但直到多年后他的划时代(革命性)的量子理论才整体得到承认。A．radical根本的，激进的；B．extremist极端主义(者)；C．momentous重大的，重要的；D．militaristic军国主义的，尚武的；因此C为正确选项。
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