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When an electron falls from a higher e...

When an electron falls from a higher energy to a lower energy level, the difference in the energies appears in the forms of electromagnetic radiation. Why cannot it be emitted as other forms of energy?

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When an electron falls form a heigher energy to a lower energy level, difference in energies appears in the form of electromagnetic radiation only. This is because electrons (being charged) interact only electromagnetically.
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When an electron falls from a higher energy to a lower energy level, the difference in the energies appears in the form of electromagnetic radiation. Why cannot it be emitted as other forms of energy?

When an electron drops from a higher energy level to a low energy level, then

Knowledge Check

  • when an electron falls from a higher energy to a lower energy level the difference in the energies appears in the form of

    A
    electromagnetic radiation only
    B
    thermal radiation only
    C
    both electromagnetic and thermal radiations
    D
    none of these

  • When an electron drops from a higher energy level to a low energy level, then

    A
    Energy is emitted
    B
    Energy is absorbed
    C
    Atomic number increases
    D
    Atomic number decreases

  • When an electron jumps from higher energy orbit to lower energy orbit, the difference in the energies in the two orbits is radiated as quantum (photon) of….

    A
    `E = mc^(2)`
    B
    `E =h/v`ℎ
    C
    `E=(hc)/lamda`
    D
    `E=lamda/(hc)`

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    When an electron of hydrogen like atom jumps from a higher energy level to a lower energy level.

    What happens when an electron jumps from a lower energy level to a higher energy level?

    What are different forms of energy ?

    The postulates of Bohr's atomic model are given below. Arrange them in the correct sequence : (1) As long the electron revolves in a particular orbit, the electron does not lose its energy. Therefore, these orbits are called stationary orbits and the electrons are said to be in stationary energy states. (2) Electrons revolve round the nucleus in specified circualr paths called orbits or shells. (3) The energy associated with a certain energy level increases with the increase of its distance from the nucleus. (4) An electron jumps form a lower energy level to a higher energy level by absorbing energy. But when it jumps from a higher to lower energy level, energy is emitted in the form of electromagnetic radiation. (5) Each orbit or sheel is associated with a definite amount of energy. Hence, these are also called energy levels and are designated as K,L,M and N, respectively.

    if electron falls from n=3 to n=2, then emitted energy is

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