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The dimensional formula of torque is...

The dimensional formula of torque is

A

`[ML^(2)T^(-2)]`

B

`[MLT^(-2)]`

C

`[ML^(-1)T^(-2)]`

D

`[ML^(-2)T^(-2)]`

Text Solution

Verified by Experts

The correct Answer is:
A

Torque `tau = r xx F`
Dimensions of `tau =` dimension of `r xx` dimension of `F`
`=[L] [MLT^(-2)] = [MLT^(2)T^(-2)]`
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Knowledge Check

  • The dimensional formula of stress is

    A
    `[ML^(-1) T^(-2)],`
    B
    `[M^@ L^@ T^@]`
    C
    `[MLT^(-1)]`.
    D
    `[MLT^(-2)]`
  • The dimensional formula of couple

    A
    `ML^(2)T^(-2)
    B
    `MLT^(-1)
    C
    `ML^(-1)T^(-1)
    D
    `M^(1)L^(1)T^(-2)
  • The fundamental physical quantites quanties that have same dimension in the dimensional formula of Torque and Angular Momentum are

    A
    mass, time
    B
    time, length
    C
    mass, length
    D
    time, mole
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