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When a gas at reduced pressure is subjected to an electric discharge, the rays orignating from the negative electrode are–
- a)Anode rays
- b)Cathode rays
- c)x-rays
- d)Radiation ray,
Correct answer is option 'B'. Can you explain this answer?
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When a gas at reduced pressure is subjected to an electric discharge, ...
Explanation:
The correct answer is B: Cathode rays.
- When a gas at reduced pressure is subjected to an electric discharge, the rays originating from the negative electrode are called cathode rays.
- Cathode rays are streams of electrons that are emitted from the cathode (negative electrode) in a vacuum tube or gas discharge tube.
- These rays are produced when a high voltage is applied across the electrodes, causing electrons to be accelerated towards the anode (positive electrode).
- Cathode rays have several properties:
- They travel in straight lines.
- They can cause fluorescence in certain materials.
- They are deflected by electric and magnetic fields, indicating that they have a negative charge.
- They can produce heat and can cause ionization when they collide with atoms or molecules in the gas.
- The discovery of cathode rays by J.J. Thomson in the late 19th century played a crucial role in the development of modern physics and the understanding of the structure of the atom.
- Cathode rays are not the same as anode rays (A), which are positive ions formed near the anode in a gas discharge tube.
- They are also different from x-rays (C), which are electromagnetic radiation produced by high-energy processes, and radiation rays (D), which is not a specific term in the context of gas discharge.
Therefore, the correct answer is B: Cathode rays.
The correct answer is B: Cathode rays.
- When a gas at reduced pressure is subjected to an electric discharge, the rays originating from the negative electrode are called cathode rays.
- Cathode rays are streams of electrons that are emitted from the cathode (negative electrode) in a vacuum tube or gas discharge tube.
- These rays are produced when a high voltage is applied across the electrodes, causing electrons to be accelerated towards the anode (positive electrode).
- Cathode rays have several properties:
- They travel in straight lines.
- They can cause fluorescence in certain materials.
- They are deflected by electric and magnetic fields, indicating that they have a negative charge.
- They can produce heat and can cause ionization when they collide with atoms or molecules in the gas.
- The discovery of cathode rays by J.J. Thomson in the late 19th century played a crucial role in the development of modern physics and the understanding of the structure of the atom.
- Cathode rays are not the same as anode rays (A), which are positive ions formed near the anode in a gas discharge tube.
- They are also different from x-rays (C), which are electromagnetic radiation produced by high-energy processes, and radiation rays (D), which is not a specific term in the context of gas discharge.
Therefore, the correct answer is B: Cathode rays.
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When a gas at reduced pressure is subjected to an electric discharge, the rays orignating from the negative electrode are–a)Anode raysb)Cathode raysc)x-raysd)Radiation ray,Correct answer is option 'B'. Can you explain this answer?
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