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What is the value of one Bohr magneton i...

What is the value of one Bohr magneton in S.I. units?

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Bohr magneton (BM) is given in Si units, as
`BM=9.273xx10^(-24)JT^(-1)`
The value of BM is obtained from the relation `BM=("eh")/(4pimc)`
Here e is charge of electron (in coul), h is Plancks constant (in J.sec), m is mass of electron (in kg) and c is velocity of light.
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Knowledge Check

  • Value of Rin SI units is

    A
    `8.315 xx 10^(-7) erg K^(-1)"mol"^(-1)`
    B
    `8.315 J K^(-1) "mole"^(-1)`
    C
    `0.0823 lit. Atm . K^(-1) "mole"^(-1)`
    D
    `2 cal K^(-1) "mole"^(-1)`

  • The value of Planck.s constant in SI unit is

    A
    `6.63 xx 10^(-31) J-s`
    B
    `6.63 xx 10^(-30) "kg"-m//s`
    C
    `6.63 xx 10^(-32) "kg"-m^(2) `
    D
    `6.63 xx 10^(-34) "J"-s`

  • The value of Planck's constant in SI unit is

    A
    `6.63 xx 10^(-31 )` J-s
    B
    `6.63 xx 10^(-30 )` kg - m/s
    C
    `6.63 xx 10^(-32)` kg- m/s
    D
    `6.63 xx 10^(-34)` j-s

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