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Questions and Answers
What did Roentgen use to detect the X-rays?
What did Roentgen use to detect the X-rays?
- Thermoluminescent dosimeter
- Photographic plates
- Fluorescent screens (correct)
- Geiger counter
What did Wilhelm Roentgen discover in 1895?
What did Wilhelm Roentgen discover in 1895?
- Gamma rays
- Infrared rays
- X-rays (correct)
- Ultraviolet rays
What did Roentgen conclude about the nature of X-rays?
What did Roentgen conclude about the nature of X-rays?
- They were photons
- They were not charged particles (correct)
- They were positively charged particles
- They were negatively charged particles
What did Roentgen receive the first Nobel Prize in physics for?
What did Roentgen receive the first Nobel Prize in physics for?
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What is a property of X-rays according to the text?
What is a property of X-rays according to the text?
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Study Notes
Roentgen's Discovery of X-rays
- Wilhelm Roentgen discovered X-rays in 1895 while experimenting with cathode rays.
- He used a Crookes tube, which is a type of vacuum tube, to detect the presence of X-rays.
- Observed that a nearby fluorescent screen glowed when the tube was energized, indicating the emission of an unknown type of ray.
Nature of X-rays
- Roentgen concluded that X-rays were a new form of radiation that could penetrate opaque materials.
- He noted that X-rays are invisible and can pass through the human body, allowing for the visualization of internal structures.
Nobel Prize in Physics
- Roentgen was awarded the first Nobel Prize in Physics in 1901 for his discovery of X-rays.
- His groundbreaking work laid the foundation for advances in medical imaging and safety.
Properties of X-rays
- X-rays have unique properties, including their ability to penetrate solid objects while remaining invisible.
- They can produce images of bones and tissues, making them essential for medical diagnostics.
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