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Thomson’s plum pudding model explained:

  • a)
     Existence of electrons

  • b)
    Electrical neutrality of an atom

  • c)
    Existence of atoms

  • d)
    Electrons move in fixed circular orbits

Correct answer is option 'B'. Can you explain this answer?
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Thomson’s plum pudding model explained:a)Existence of electronsb...
Postulates of Thomson’s atomic model
  • An atom consists of a positively charged sphere with electrons filled into it. The negative and positive charge present inside an atom are equal and as a whole, an atom is electrically neutral.
  • Thomson’s model of the atom was compared to plum pudding and watermelon. He compared the red edible part of the watermelon to positively charged sphere whereas the seeds of watermelon to negatively charged particles.
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Thomson’s plum pudding model explained:a)Existence of electronsb...
Thomson is a surname of Scottish origin. It is derived from the Old Norse personal name "Tómr", meaning "empty" or "hollow", and the suffix "-son", which means "son of". The name was first recorded in Scotland in the 14th century and became widely used as a surname in the 16th century. Notable people with the surname Thomson include the physicist J.J. Thomson, the journalist and television presenter Kay Burley, and the former British Prime Minister David Cameron.
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Thomson’s plum pudding model explained:a)Existence of electronsb...
An atom to consist of uniform sphere of positive electricity with electrons embedded into it in such a way that it gives more stable electrostatic arrangement
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A dense collection of equal number of electrons and positive ions is called neutral plasma. Certain solids containing fixed positive ions surrounded by free electrons can be treated as neutral plasma. Let N be the number density of free electrons, each of mass m. When the electrons are subjected to an electric field, they are displaced relatively away from the heavy positive ions. If the electric field becomes zero, the electrons begin to oscillate about the positive ions with a natural angular frequency wP which is called the plasma frequency. To sustain the oscillations, a time varying electric field needs to be applied that has an angular frequency w, where a part of the energy is absorbed and a part of it is reflected. As w approaches wP, all the free electrons are set to resonance together and all the energy is reflected. This is the explanation of high reflectivity of metals.Taking the electronic charge as e and the permittivity as ε0, use dimensional analysis to determine the correct expression for wP.

Can you explain the answer of this question below:A dense collection of equal number of electrons and positive ions is called neutral plasma. Certain solids containing fixed positive ions surrounded by free electrons can be treated as neutral plasma. Let N be the number density of free electrons, each of mass m. When the electrons are subjected to an electric field, they are displaced relatively away from the heavy positive ions. If the electric field becomes zero, the electrons begin to oscillate about the positive ions with a natural angular frequency wP which is called the plasma frequency. To sustain the oscillations, a time varying electric field needs to be applied that has an angular frequency w, where a part of the energy is absorbed and a part of it is reflected. As w approaches wP, all the free electrons are set to resonance together and all the energy is reflected. This is the explanation of high reflectivity of metals.Taking the electronic charge as e and the permittivity as 0, use dimensional analysis to determine the correct expression for wP. [JEE-2011]A:B:C:D:The answer is C.

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Thomson’s plum pudding model explained:a)Existence of electronsb)Electrical neutrality of an atomc)Existence of atomsd)Electrons move in fixed circular orbitsCorrect answer is option 'B'. Can you explain this answer?
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