MDCAT Physics MCQ #3693

In a three-dimensional Cartesian coordinate system, what is the result of the scalar product between the unit vectors i and j?

MDCAT Physics MCQ #3693

  1. Question 1

    Q1. In a three-dimensional Cartesian coordinate system, what is the result of the scalar product between the unit vectors i and j?

    • A) 1
    • B) k
    • C) 0
    • D) -1

    Answer: 0

    Explanation: The dot product of perpendicular unit vectors is zero because cos(90) is zero. Option B is incorrect as it applies to parallel vectors.