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If n is the numerical value of a physica...

If n is the numerical value of a physical quantity in the system in which its unit is u. then which of the following relations is correct?

A

`n/u`=constant

B

`u/n`=constant

C

nu=constant

D

`n^2u`=constant

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Knowledge Check

  • Numerical value of the magnitude of a physical quantity is

    A
    directly proportional to magnitude of the unit
    B
    inversely proportional to magnitude of the unit
    C
    independent of system of unit
    D
    either (a) or (b)

  • If the wave changes its medium then which of the following physical quantity changes?

    A
    wavelength of wave
    B
    frequency of wave
    C
    speed of wave
    D
    both (1) and (3)

  • If n is number and u is the unit of a physical quantity then which of the following is correct for the measurement of "n".

    A
    `n prop ` size of u
    B
    `n prop u^2`
    C
    `n prop sqrt(u)`
    D
    `n prop 1/u`

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