MDCAT Physics MCQ #3674

Two vectors are defined as A = 3i and B = 4j. What is the result of the scalar product A dot B for these vectors?

MDCAT Physics MCQ #3674

  1. Question 1

    Q1. Two vectors are defined as A = 3i and B = 4j. What is the result of the scalar product A dot B for these vectors?

    • A) 12
    • B) 7
    • C) 1
    • D) 0

    Answer: 0

    Explanation: The scalar product of perpendicular unit vectors i and j is zero. Option A is tempting because it represents the product of their magnitudes.