Which of the following is-are required to completely specify length-Only unitOnly magnitudeNeither magnitude nor unitBoth magnitude and unit

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Standardising length measurement

Which of the ...

Question

Which of the following is/are required to completely specify length?

Neither magnitude nor unit

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Both magnitude and unit

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Only unit

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Only magnitude

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Solution

The correct option is B Both magnitude and unit
The length will be completely specified only if both the magnitude and unit of measurement are specified. To specify length it is not necessary to use the SI unit always.

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Similar questions

A quantity which can be specified completely by its magnitude is called a vector quantity.

What is the name given to the physical quantity which can be completely described by specifying both magnitude and direction? Name four such quantities.

What is the name given to the physical quantity which can be completely described by specifying magnitude only? Name four such quantities.

wrong statement ?

a)vectors are having both magnitude and direction

b)a unit vector has no dimention and unit

c) a null vector is having specific direction

d)a unit vector is used to specify only direction

e)vector addition is commutative

A quantity which can be represented completely by specifying both its magnitude as well as direction is called a scalar quantity.

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Which of the following is/are required to completely specify length?

The correct option is B Both magnitude and unitThe length will be completely specified only if both the magnitude and unit of measurement are specified. To specify length it is not necessary to use the SI unit always.

The correct option is B Both magnitude and unit
The length will be completely specified only if both the magnitude and unit of measurement are specified. To specify length it is not necessary to use the SI unit always.