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Planck's constant has the dimensions of...

Planck's constant has the dimensions of

A

force

B

energy

C

linear momentum

D

angular momentum

Text Solution

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The correct Answer is:
D
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Planck's constant, has dimensions of Energy x time. In a system of units, used in particle physics, Planck's constant and the velocity of light c are both put equal to 1 and energy is a fundamental unit. What will be the unit for measurement of angular momentum? What will be the dimension of length? If the unit of energy is 1 MeV, what will be the unit of length?

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Knowledge Check

  • Plancks' constant has the dimensions of

    A
    linear momentum
    B
    angular momentum
    C
    energy
    D
    power

  • Planck's constant has the dimension (unit) of

    A
    Energy
    B
    Linear momentum
    C
    Work
    D
    Angular momentum

  • Planck's constant has the same dimensions as that of

    A
    Power
    B
    Work
    C
    Radiant energy
    D
    Angular momentum

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