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Define average pressure. Mention it's un...

Define average pressure. Mention it's unit and dimensional formula. Is it a scalar or a vector?

Text Solution

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Average pressure (`P_(av)`): The normal force acting per unit is called average pressure.
`impliesP_(av)=F/A`
Units: In SI = `Nm^-2`.
The dimensional formula: `ML^-1 T^-2` .
It is a scalar quantity.
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Knowledge Check

  • The dimensional formula of pressure is

    A
    `[MLT^(-2)]`
    B
    `[ML^(-1)T^(2)]`
    C
    `[ML^(-1)T^(-2)]`
    D
    `[MLT^(-2)]`

  • The dimensional formula of pressure is

    A
    `[MLT^(-2)]`
    B
    `[ML^(-1)T^2]`
    C
    `[ML^(-1)T^(-2)]`
    D
    `[MLT^(-2)]`

  • The dimensional formula of pressure is

    A
    `[MLT^(-2) ]`
    B
    `[ML^(-1) T^(2) ]`
    C
    `[ML^(-1) T^(-2) ]`
    D
    `[MLT^(-2) ]`

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