MDCAT Physics MCQ #3711

If the magnitude of the sum of two vectors is equal to the magnitude of their difference, what is the angle between the vectors?

MDCAT Physics MCQ #3711

  1. Question 1

    Q1. If the magnitude of the sum of two vectors is equal to the magnitude of their difference, what is the angle between the vectors?

    • A) 90 degrees
    • B) 0 degrees
    • C) 180 degrees
    • D) 45 degrees

    Answer: 90 degrees

    Explanation: If |A+B| = |A-B|, then the vectors must be perpendicular (90 degrees). Option B results in |A+B| being maximum.