What is the numerical value of vector 3 i +4 j +5 k ?

Physics · JEE Main · NTA ExamsPhysics and Measurement

What is the numerical value of vector \(3 \hat{i}+4 \hat{j}+5 \hat{k}\) ?
  1. \(3 \sqrt{2}\)
  2. \(5 \sqrt{2}\)
  3. \(7 \sqrt{2}\)
  4. \(9 \sqrt{2}\)

Answer

(B) 5 2

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