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Questions and Answers
Who discovered X-rays in 1895?
Who discovered X-rays in 1895?
What did J. J. Thomson discover in 1897?
What did J. J. Thomson discover in 1897?
What did William Crookes suggest about cathode rays?
What did William Crookes suggest about cathode rays?
What caused the fluorescence on the glass opposite to the cathode in the discharge tube?
What caused the fluorescence on the glass opposite to the cathode in the discharge tube?
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What did Hertz's experiments strongly establish about light?
What did Hertz's experiments strongly establish about light?
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Study Notes
Discovery of X-rays
- X-rays were discovered by Wilhelm Conrad Röntgen in 1895, marking a significant advancement in medical imaging.
Discovery of Electrons
- In 1897, J. J. Thomson discovered the electron, establishing the existence of subatomic particles and revolutionizing atomic theory.
Cathode Rays
- William Crookes proposed that cathode rays were composed of streams of charged particles, contributing to the understanding of atomic structure.
Fluorescence in Discharge Tubes
- Fluorescence observed on the glass opposite the cathode in discharge tubes was caused by cathode rays exciting the atoms in the glass, resulting in light emission.
Light and Hertz's Experiments
- Heinrich Hertz's experiments provided strong evidence that light possesses wave-like properties, reinforcing the wave theory of light and leading to the understanding of electromagnetic radiation.
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Description
Test your knowledge of the dual nature of radiation and matter in physics with this quiz. Explore topics such as Maxwell's equations, electromagnetic waves, and experimental investigations from the end of the 19th century.
