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Assertion: Electrons in the atom are hel...

Assertion: Electrons in the atom are held due to coulomb forces.
Reason: The atom is stable only because the centripetal force due to Coulomb's law is balanced by the centrifugal force.

A

If both assertion and reason are true and reason is the correct explanation of assertion.

B

If both assertion and reason are true but reason is not the correct explanation of assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
According to postulates of Bohr's atom model, the electron revolve round the nucleus in fixed orbit of definite radii. As long as the electron is in a cenrtain orbits it does not radiate any energy.
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Knowledge Check

  • Electron in the atom are held due to

    A
    Coulomb's forces
    B
    nuclear forces
    C
    gravitational forces
    D
    Vander forces

  • Assertion : Centripetal and centrifugal forces always cancle eachother Reason : The is because the two forces act on different bodies .

    A
    If both, Assertion and Reason are true and the Reason is the correct explanation of the Assertion
    B
    If both, Assertion and Reason are true but Reason is not a correct explanation of the Assertion
    C
    If Assertion is ture but the Reason is false
    D
    If both, Assertion and Reason are false

  • Assertion : Electrons do not experience strong nuclear force. Reason : Strong nuclear force is charge-independent force.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.