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If u(1) and u(2) are the selected in two...

If `u_(1) and u_(2)` are the selected in two system of measurement and `n_(1) and n_(2)` their nomerical values, then

A

`n_(1)u_(1)=n_(2)u_(2)`

B

`n_(1)u_(1)+n_(2)u_(2) = 0`

C

`n_(1)n_(2)=u_(1)u_(2)`

D

`(n_(1) + u_(1)) =(n_(2) + u_(2))`

Text Solution

Verified by Experts

The correct Answer is:
a
Physical quantity `(p) = "Numerical value" (n) xx "Unit" (u)`. if physical quantity remain constant then
`n = 1//u :. N_(1)u_(1) = n_(2)u_(2)`
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Knowledge Check

  • If u_(1) and u_(2) are the units selected in two systems of measurement and n_(1) and n_(2) their numerical values, then

    A
    `n_(1)u_(1)=n_(2)u_(2)`
    B
    `n_(1)u_(1)+n_(2)u_(2)=0`
    C
    `n_(1)n_(2)=u_(1)u_(2)`
    D
    `(n_(1)+u_(1))=(n_(2)+u_(2))`

  • If u_1 and u_2 are the units selected in two systems of measurement and n_1 and n_2 their numerical values, then

    A
    `n_1u_1=n_2u_2`
    B
    `n_1u_1+n_2u_2=0`
    C
    `n_1n_2=u_1u_2`
    D
    `(n_1+u_1)l=(n_2+u_2)`

  • The numerical values and units of a physical quantity in two different system of units are n_(1), n_(2) and u_(1), u_(2) respectively. Then

    A
    `n_(1)u_(2)=n_(2)u_(1)`
    B
    `n_(1)u_(1)^(2)=n_(2)u_(2)^(2)`
    C
    `n_(1)=n_(2) & u_(1)=u_(2)`
    D
    `n_(1)u_(1)=n_(2)u_(2)`

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