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Statement I : The magnetic moment of an ...

Statement I : The magnetic moment of an electron rotating in an atom is proportional to its angular momentum .
Statement II : The electrons in an atom can rotate only if those orbits for which the angular momentum of the electron is an integral multiple of `(h)/(2pi)` (h - Planck 's constant ).

A

Statement I is true , statement II is true , statement II is a correct explanation for statement I .

B

Statement I is true ,statement II is true , statement II is not a correct explanation for statement I .

C

Statement I is true , statement II is false

D

statement I is false , statement II is true

Text Solution

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The correct Answer is:
B
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Knowledge Check

  • The orbital angular momentum of a 2p-electron is

    A
    `sqrt(3)h`
    B
    `sqrt(6)h`
    C
    zero
    D
    `sqrt(2)h/(2pi)`

  • In bohr's models of atom the lowest angular momentum, that an electron may have is-

    A
    `h`
    B
    `0`
    C
    `(h)/(2pi)`
    D
    `(h)/(pi)`

  • Statement I: The kinetic energy of an electron in the first excited state of a hydrogen atom is 6.8 eV. Statement II: Total energy of first excited state of hydrogen atom is -3.4 eV.

    A
    Direction: These question have statement I and statement II. Of the four choices given below , choose the one that best describes the two statements.
    A : Statement I is true , statement II is true, statement II is a correct explanation for statement I.
    B: Statement I is true , statement II is true, statement II is not a correct explanation for statement I.
    C: Statment I is true, statement II is false.
    D: Statement I is false, statement II is true.
    B
    Direction: These question have statement I and statement II. Of the four choices given below , choose the one that best describes the two statements.
    A : Statement I is true , statement II is true, statement II is a correct explanation for statement I.
    B: Statement I is true , statement II is true, statement II is not a correct explanation for statement I.
    C: Statment I is true, statement II is false.
    D: Statement I is false, statement II is true.
    C
    Direction: These question have statement I and statement II. Of the four choices given below , choose the one that best describes the two statements.
    A : Statement I is true , statement II is true, statement II is a correct explanation for statement I.
    B: Statement I is true , statement II is true, statement II is not a correct explanation for statement I.
    C: Statment I is true, statement II is false.
    D: Statement I is false, statement II is true.
    D
    Direction: These question have statement I and statement II. Of the four choices given below , choose the one that best describes the two statements.
    A : Statement I is true , statement II is true, statement II is a correct explanation for statement I.
    B: Statement I is true , statement II is true, statement II is not a correct explanation for statement I.
    C: Statment I is true, statement II is false.
    D: Statement I is false, statement II is true.

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