Questions and Answers
What can photons of X-ray and gamma ray radiation do to matter?
Which type of electromagnetic radiation is considered non-ionizing?
What is a characteristic that distinguishes X-rays and gamma rays from other types of electromagnetic radiation?
Which of the following types of electromagnetic radiation have enough energy to remove tightly bound electrons from atoms?
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What is true about the energy levels of X-rays and gamma rays compared to other types of electromagnetic radiation?
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What type of radiation does X-ray belong to?
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What is a major concern associated with X-rays?
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What is the classification of X-rays based on their ionizing ability?
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What is the relationship between X-rays and electromagnetic radiation?
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What can be said about the application of X-rays in research?
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What was Roentgen able to see on the screen during his experiment?
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What happened to the electrons as they streamed across the distance between the cathode and anode?
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What was the purpose of the Crookes tube in Roentgen's experiment?
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What was unknown to scientists at the time of Roentgen's experiment?
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What was Roentgen doing when he discovered X-rays?
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What is the result of increasing the voltage applied to the tube?
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How does the voltage applied to the tube affect the electron stream?
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What is the relationship between voltage and electron stream velocity?
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What happens to the electron stream velocity when the voltage is increased?
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How is the acceleration of the electron stream controlled?
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What is the frequency range of Ultra Violet radiation?
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What is the wavelength of Ultra Violet radiation?
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What is a consequence of exposure to Ultra Violet radiation?
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Which of the following types of radiation has a higher frequency than Ultra Violet radiation?
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What is the relationship between the frequency and wavelength of Ultra Violet radiation?
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Study Notes
Electromagnetic Radiation (EM)
- X-rays are a type of EM radiation
- EM radiation can be classified into two categories:
- Ionizing: X-rays and gamma rays can ionize matter
- Non-ionizing: radio, infrared, visible, ultraviolet cannot ionize matter
X-rays in Research and Health Risks
- X-rays are a valuable tool in research, but they pose health risks
- Wilhelm Röntgen discovered X-rays through an experiment involving a Crookes tube and a screen, allowing him to see the bones in his hand
Acceleration of Electrons
- Electrons streaming across the distance between the cathode and anode accelerate to a very high velocity
- The acceleration of electrons is controlled by the voltage applied to the tube
- The higher the voltage, the greater the velocity of the electron stream
Frequency and Wavelength
- X-rays have a frequency of 1 x 10^16 Hz
- Ultraviolet radiation has a wavelength of 1 x 10^-7m and is responsible for people getting a tan or sunburn
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Description
Understand the properties of electromagnetic radiation, including X-rays, gamma rays, and other forms of radiation. Learn about ionizing and non-ionizing radiation and their effects on matter.