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27-02-2020
Physics

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Two vectors A and B are directed such that there is an angle θ between them. show answer Incorrect Answer Which of the following statements is true about the scalar product of these two vectors?

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pmdislamabad pmdislamabad

28-02-2020

Answer:

Scalar product is between ║A║ ║ B║ and -║A║ ║ B║

Explanation:

Dot product between vec A and vec B is

A.B = ║A║ ║ B║ cos θ

Here, both ║A║ and ║B║ are positive and value of cos θ depends upon θ and lies between 1 and -1

So, Scalar product is between ║A║ ║ B║ and -║A║ ║ B║

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