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Standard XII

Chemistry

Longest Chain Rule

Consider the ...

Question

Consider the following two statements A and B and identify the correct answer.
A) The size ( $u$ ) of the unit of physical quantity and its numerical magnitude ( $n$ ) are related to each other by the relation nu $=$ constant
B) The choice of mass, length and time as fundamental quantities is not unique.

A is true but B is false

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B is true but A is false

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Both A and B are true

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Both A and B are false

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Solution

The correct option is C Both A and B are true
A: eg. $10$ seconds, where $n = 10, u =$ seconds. This is constant.
B: We can choose any quantity as fundamental and derive other quantities with respect to that

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Consider the following two statements A and B and identify the correct answer.A) The size (u) of the unit of physical quantity and its numerical magnitude (n) are related to each other by the relation nu = constantB) The choice of mass, length and time as fundamental quantities is not unique.

The correct option is C Both A and B are trueA: eg. 10 seconds, where n=10,u=seconds. This is constant.B: We can choose any quantity as fundamental and derive other quantities with respect to that

The correct option is C Both A and B are true
A: eg. $10$ seconds, where $n = 10, u =$ seconds. This is constant.
B: We can choose any quantity as fundamental and derive other quantities with respect to that