EWT | Academic Question

Questions
Question (1)
QN0034863

Which of the following conditions are sufficient and essential for a quantity to be a vector?

  • (A)

    Magnitude and direction 

  • (B)

    Magnitude and addition, subtraction, multiplication by ordinary rules of algebra

  • (C)

    Magnitude, direction, and addition, subtraction multiplication and division by vector laws

  • (D)

    Magnitude, direction and combination of vectors by ordinary rules of algebra

Correct Answer: C
Explanation:

A vector quantity is defined as the quantity which has magnitude and direction and for which all the  

mathematical operations are possible only through vector laws of algebra.

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Question (2)
QN0034864

It is found that . This necessarily implies,

  • (A)

  • (B)

    and  are antiparallel

  • (C)

    and  are perpendicular

  • (D)

    A.B

Correct Answer: B
Explanation:

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