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Question 260001
JEE Mathematics · Easy

Vectors: Basic concepts MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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Basic conceptsEasyQuestion 260001

Question

The magnitude of vector a⃗ = 3î + 4ĵ is:
  1. A
    5
    Correct
  2. B
    7
  3. C
    25
  4. D
    1

Correct answer

5

Explanation

|a⃗| = √(3² + 4²) = √(9 + 16) = √25 = 5.

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