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Physical quantity = Numerical value x...

Physical quantity = Numerical value x____

A

Standard number

B

Standard Unit

C

standard value

D

none of these

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Knowledge Check

  • A : When we change the unit of a measurement of a quantity, its numerical value changes. R : The product of numerical value of the physical quantity and unit for a quantity remain constant.

    A
    If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1).
    B
    If both Assertion & Reason are true but the reason is not the correct explanation of the assertion, then mark (2).
    C
    If Assertion is true statement but Reason is false, then mark (3).
    D
    If both Assertion and Reason are false statements, then mark (4).

  • Assertion: When we change the unit of measurement of a quantity, its numerical value also changes. Reason : Smaller the unit of measurement. smaller is its numerical value.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
    If both assertion and reason are true but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If assertion is false but reason is true.

  • Assertion: When we change the unit of measurerment of a quantity its numerical value changes. Reason: Smaller the unit of measurement smaller is its numerical value.

    A
    If both assertion and reason are true and reason is the correct explation of assertion.
    B
    If both assertion but reason is not the correct explanation of assertion.
    C
    If assertion is true but reason is false.
    D
    If both assertion and reason are false.

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    Statement I: Numerical value = Physical quantity xx unit Statement II: Current strength is a fundamental physical quantity according to S.I. System.

    Which of the following is not a physical quantity of measurement ?

    Assertion : When we change the unit of meansurement of a quantities its numerical value change. Reason : smaller the unit of meansurement smaller is its numerical value.

    Which of the following physical quantity is demensionless :

    Statement-I: The product of the numerical value and unit of physical quantity remains same in every system of unit. Statement-II: magnitude of a physical quantity remains same in every system of units.

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